feat: add invoicing system and subscription tier enforcement

Phase 1 OMS implementation: Invoicing: - Add Invoice and VendorInvoiceSettings database models - Full EU VAT support (27 countries, OSS, B2B reverse charge) - Invoice PDF generation with WeasyPrint + Jinja2 templates - Vendor invoice API endpoints for settings, creation, PDF download Subscription Tiers: - Add VendorSubscription model with 4 tiers (Essential/Professional/Business/Enterprise) - Tier limit enforcement for orders, products, team members - Feature gating based on subscription tier - Automatic trial subscription creation for new vendors - Integrate limit checks into order creation (direct and Letzshop sync) Marketing: - Update pricing documentation with 4-tier structure - Revise back-office positioning strategy - Update homepage with Veeqo-inspired Letzshop-focused messaging 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-24 18:15:27 +01:00
parent 4d9b816072
commit 6232bb47f6
23 changed files with 4342 additions and 241 deletions
--- a/4
+++ b/4
@@ -44,7 +44,7 @@ setup: install-all migrate-up init-prod
 # =============================================================================

 dev:
-	$(PYTHON) -m uvicorn main:app --reload --host 0.0.0.0 --port 8000
+	$(PYTHON) -m uvicorn main:app --reload --host 0.0.0.0 --port 9999

 # =============================================================================
 # DATABASE MIGRATIONS
@@ -274,7 +274,7 @@ qa: format lint arch-check test-coverage docs-check

 docs-serve:
 	@echo "Starting documentation server..."
-	$(PYTHON) -m mkdocs serve --dev-addr=0.0.0.0:8001
+	$(PYTHON) -m mkdocs serve --dev-addr=0.0.0.0:9991

 docs-build:
 	@echo "Building documentation..."
--- a/alembic/versions/h6c7d8e9f0a1_add_invoice_tables.py
+++ b/alembic/versions/h6c7d8e9f0a1_add_invoice_tables.py
@@ -0,0 +1,198 @@
+"""Add invoice tables
+
+Revision ID: h6c7d8e9f0a1
+Revises: g5b6c7d8e9f0
+Create Date: 2025-12-24
+
+This migration adds:
+- vendor_invoice_settings: Per-vendor invoice configuration
+- invoices: Invoice records with seller/buyer snapshots
+"""
+
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision: str = "h6c7d8e9f0a1"
+down_revision: Union[str, None] = "g5b6c7d8e9f0"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # Create vendor_invoice_settings table
+    op.create_table(
+        "vendor_invoice_settings",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("vendor_id", sa.Integer(), nullable=False),
+        # Company details
+        sa.Column("company_name", sa.String(length=255), nullable=False),
+        sa.Column("company_address", sa.String(length=255), nullable=True),
+        sa.Column("company_city", sa.String(length=100), nullable=True),
+        sa.Column("company_postal_code", sa.String(length=20), nullable=True),
+        sa.Column(
+            "company_country", sa.String(length=2), server_default="LU", nullable=False
+        ),
+        # VAT information
+        sa.Column("vat_number", sa.String(length=50), nullable=True),
+        sa.Column("is_vat_registered", sa.Boolean(), server_default="1", nullable=False),
+        # OSS
+        sa.Column("is_oss_registered", sa.Boolean(), server_default="0", nullable=False),
+        sa.Column("oss_registration_country", sa.String(length=2), nullable=True),
+        # Invoice numbering
+        sa.Column(
+            "invoice_prefix", sa.String(length=20), server_default="INV", nullable=False
+        ),
+        sa.Column("invoice_next_number", sa.Integer(), server_default="1", nullable=False),
+        sa.Column(
+            "invoice_number_padding", sa.Integer(), server_default="5", nullable=False
+        ),
+        # Payment information
+        sa.Column("payment_terms", sa.Text(), nullable=True),
+        sa.Column("bank_name", sa.String(length=255), nullable=True),
+        sa.Column("bank_iban", sa.String(length=50), nullable=True),
+        sa.Column("bank_bic", sa.String(length=20), nullable=True),
+        # Footer
+        sa.Column("footer_text", sa.Text(), nullable=True),
+        # Default VAT rate
+        sa.Column(
+            "default_vat_rate", sa.Numeric(precision=5, scale=2), server_default="17.00", nullable=False
+        ),
+        # Timestamps
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("(CURRENT_TIMESTAMP)"),
+            nullable=False,
+        ),
+        sa.Column(
+            "updated_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("(CURRENT_TIMESTAMP)"),
+            nullable=False,
+        ),
+        sa.ForeignKeyConstraint(
+            ["vendor_id"],
+            ["vendors.id"],
+        ),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("vendor_id"),
+    )
+    op.create_index(
+        op.f("ix_vendor_invoice_settings_id"),
+        "vendor_invoice_settings",
+        ["id"],
+        unique=False,
+    )
+    op.create_index(
+        op.f("ix_vendor_invoice_settings_vendor_id"),
+        "vendor_invoice_settings",
+        ["vendor_id"],
+        unique=True,
+    )
+
+    # Create invoices table
+    op.create_table(
+        "invoices",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("vendor_id", sa.Integer(), nullable=False),
+        sa.Column("order_id", sa.Integer(), nullable=True),
+        # Invoice identification
+        sa.Column("invoice_number", sa.String(length=50), nullable=False),
+        sa.Column("invoice_date", sa.DateTime(timezone=True), nullable=False),
+        # Status
+        sa.Column(
+            "status", sa.String(length=20), server_default="draft", nullable=False
+        ),
+        # Snapshots (JSON)
+        sa.Column("seller_details", sa.JSON(), nullable=False),
+        sa.Column("buyer_details", sa.JSON(), nullable=False),
+        sa.Column("line_items", sa.JSON(), nullable=False),
+        # VAT information
+        sa.Column(
+            "vat_regime", sa.String(length=20), server_default="domestic", nullable=False
+        ),
+        sa.Column("destination_country", sa.String(length=2), nullable=True),
+        sa.Column("vat_rate", sa.Numeric(precision=5, scale=2), nullable=False),
+        sa.Column("vat_rate_label", sa.String(length=50), nullable=True),
+        # Amounts (in cents)
+        sa.Column("currency", sa.String(length=3), server_default="EUR", nullable=False),
+        sa.Column("subtotal_cents", sa.Integer(), nullable=False),
+        sa.Column("vat_amount_cents", sa.Integer(), nullable=False),
+        sa.Column("total_cents", sa.Integer(), nullable=False),
+        # Payment info
+        sa.Column("payment_terms", sa.Text(), nullable=True),
+        sa.Column("bank_details", sa.JSON(), nullable=True),
+        sa.Column("footer_text", sa.Text(), nullable=True),
+        # PDF
+        sa.Column("pdf_generated_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("pdf_path", sa.String(length=500), nullable=True),
+        # Notes
+        sa.Column("notes", sa.Text(), nullable=True),
+        # Timestamps
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("(CURRENT_TIMESTAMP)"),
+            nullable=False,
+        ),
+        sa.Column(
+            "updated_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("(CURRENT_TIMESTAMP)"),
+            nullable=False,
+        ),
+        sa.ForeignKeyConstraint(
+            ["vendor_id"],
+            ["vendors.id"],
+        ),
+        sa.ForeignKeyConstraint(
+            ["order_id"],
+            ["orders.id"],
+        ),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_index(op.f("ix_invoices_id"), "invoices", ["id"], unique=False)
+    op.create_index(op.f("ix_invoices_vendor_id"), "invoices", ["vendor_id"], unique=False)
+    op.create_index(op.f("ix_invoices_order_id"), "invoices", ["order_id"], unique=False)
+    op.create_index(
+        "idx_invoice_vendor_number",
+        "invoices",
+        ["vendor_id", "invoice_number"],
+        unique=True,
+    )
+    op.create_index(
+        "idx_invoice_vendor_date",
+        "invoices",
+        ["vendor_id", "invoice_date"],
+        unique=False,
+    )
+    op.create_index(
+        "idx_invoice_status",
+        "invoices",
+        ["vendor_id", "status"],
+        unique=False,
+    )
+
+
+def downgrade() -> None:
+    # Drop invoices table
+    op.drop_index("idx_invoice_status", table_name="invoices")
+    op.drop_index("idx_invoice_vendor_date", table_name="invoices")
+    op.drop_index("idx_invoice_vendor_number", table_name="invoices")
+    op.drop_index(op.f("ix_invoices_order_id"), table_name="invoices")
+    op.drop_index(op.f("ix_invoices_vendor_id"), table_name="invoices")
+    op.drop_index(op.f("ix_invoices_id"), table_name="invoices")
+    op.drop_table("invoices")
+
+    # Drop vendor_invoice_settings table
+    op.drop_index(
+        op.f("ix_vendor_invoice_settings_vendor_id"),
+        table_name="vendor_invoice_settings",
+    )
+    op.drop_index(
+        op.f("ix_vendor_invoice_settings_id"), table_name="vendor_invoice_settings"
+    )
+    op.drop_table("vendor_invoice_settings")
--- a/alembic/versions/i7d8e9f0a1b2_add_vendor_subscriptions.py
+++ b/alembic/versions/i7d8e9f0a1b2_add_vendor_subscriptions.py
@@ -0,0 +1,148 @@
+"""Add vendor subscriptions table
+
+Revision ID: i7d8e9f0a1b2
+Revises: h6c7d8e9f0a1
+Create Date: 2025-12-24
+
+This migration adds:
+- vendor_subscriptions: Per-vendor subscription tracking with tier limits
+"""
+
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision: str = "i7d8e9f0a1b2"
+down_revision: Union[str, None] = "h6c7d8e9f0a1"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # Create vendor_subscriptions table
+    op.create_table(
+        "vendor_subscriptions",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("vendor_id", sa.Integer(), nullable=False),
+        # Tier and status
+        sa.Column(
+            "tier", sa.String(length=20), server_default="essential", nullable=False
+        ),
+        sa.Column(
+            "status", sa.String(length=20), server_default="trial", nullable=False
+        ),
+        # Billing period
+        sa.Column("period_start", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("period_end", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("is_annual", sa.Boolean(), server_default="0", nullable=False),
+        # Trial
+        sa.Column("trial_ends_at", sa.DateTime(timezone=True), nullable=True),
+        # Usage counters
+        sa.Column("orders_this_period", sa.Integer(), server_default="0", nullable=False),
+        sa.Column("orders_limit_reached_at", sa.DateTime(timezone=True), nullable=True),
+        # Custom overrides
+        sa.Column("custom_orders_limit", sa.Integer(), nullable=True),
+        sa.Column("custom_products_limit", sa.Integer(), nullable=True),
+        sa.Column("custom_team_limit", sa.Integer(), nullable=True),
+        # Payment (future Stripe integration)
+        sa.Column("stripe_customer_id", sa.String(length=100), nullable=True),
+        sa.Column("stripe_subscription_id", sa.String(length=100), nullable=True),
+        # Cancellation
+        sa.Column("cancelled_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("cancellation_reason", sa.Text(), nullable=True),
+        # Timestamps
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("(CURRENT_TIMESTAMP)"),
+            nullable=False,
+        ),
+        sa.Column(
+            "updated_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("(CURRENT_TIMESTAMP)"),
+            nullable=False,
+        ),
+        sa.ForeignKeyConstraint(
+            ["vendor_id"],
+            ["vendors.id"],
+        ),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("vendor_id"),
+    )
+    op.create_index(
+        op.f("ix_vendor_subscriptions_id"),
+        "vendor_subscriptions",
+        ["id"],
+        unique=False,
+    )
+    op.create_index(
+        op.f("ix_vendor_subscriptions_vendor_id"),
+        "vendor_subscriptions",
+        ["vendor_id"],
+        unique=True,
+    )
+    op.create_index(
+        op.f("ix_vendor_subscriptions_tier"),
+        "vendor_subscriptions",
+        ["tier"],
+        unique=False,
+    )
+    op.create_index(
+        op.f("ix_vendor_subscriptions_status"),
+        "vendor_subscriptions",
+        ["status"],
+        unique=False,
+    )
+    op.create_index(
+        op.f("ix_vendor_subscriptions_stripe_customer_id"),
+        "vendor_subscriptions",
+        ["stripe_customer_id"],
+        unique=False,
+    )
+    op.create_index(
+        op.f("ix_vendor_subscriptions_stripe_subscription_id"),
+        "vendor_subscriptions",
+        ["stripe_subscription_id"],
+        unique=False,
+    )
+    op.create_index(
+        "idx_subscription_vendor_status",
+        "vendor_subscriptions",
+        ["vendor_id", "status"],
+        unique=False,
+    )
+    op.create_index(
+        "idx_subscription_period",
+        "vendor_subscriptions",
+        ["period_start", "period_end"],
+        unique=False,
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("idx_subscription_period", table_name="vendor_subscriptions")
+    op.drop_index("idx_subscription_vendor_status", table_name="vendor_subscriptions")
+    op.drop_index(
+        op.f("ix_vendor_subscriptions_stripe_subscription_id"),
+        table_name="vendor_subscriptions",
+    )
+    op.drop_index(
+        op.f("ix_vendor_subscriptions_stripe_customer_id"),
+        table_name="vendor_subscriptions",
+    )
+    op.drop_index(
+        op.f("ix_vendor_subscriptions_status"), table_name="vendor_subscriptions"
+    )
+    op.drop_index(
+        op.f("ix_vendor_subscriptions_tier"), table_name="vendor_subscriptions"
+    )
+    op.drop_index(
+        op.f("ix_vendor_subscriptions_vendor_id"), table_name="vendor_subscriptions"
+    )
+    op.drop_index(
+        op.f("ix_vendor_subscriptions_id"), table_name="vendor_subscriptions"
+    )
+    op.drop_table("vendor_subscriptions")
--- a/app/api/v1/vendor/init.py
+++ b/app/api/v1/vendor/init.py
@@ -21,6 +21,7 @@ from . import (
    dashboard,
    info,
    inventory,
+    invoices,
    letzshop,
    marketplace,
    media,
@@ -59,6 +60,7 @@ router.include_router(settings.router, tags=["vendor-settings"])
 router.include_router(products.router, tags=["vendor-products"])
 router.include_router(orders.router, tags=["vendor-orders"])
 router.include_router(order_item_exceptions.router, tags=["vendor-order-exceptions"])
+router.include_router(invoices.router, tags=["vendor-invoices"])
 router.include_router(customers.router, tags=["vendor-customers"])
 router.include_router(team.router, tags=["vendor-team"])
 router.include_router(inventory.router, tags=["vendor-inventory"])
--- a/app/api/v1/vendor/invoices.py
+++ b/app/api/v1/vendor/invoices.py
@@ -0,0 +1,369 @@
+# app/api/v1/vendor/invoices.py
+"""
+Vendor invoice management endpoints.
+
+Vendor Context: Uses token_vendor_id from JWT token (authenticated vendor API pattern).
+The get_current_vendor_api dependency guarantees token_vendor_id is present.
+
+Endpoints:
+- GET /invoices - List vendor invoices
+- GET /invoices/{invoice_id} - Get invoice details
+- POST /invoices - Create invoice from order
+- PUT /invoices/{invoice_id}/status - Update invoice status
+- GET /invoices/{invoice_id}/pdf - Download invoice PDF
+- POST /invoices/{invoice_id}/pdf - Generate/regenerate invoice PDF
+- GET /invoices/settings - Get invoice settings
+- POST /invoices/settings - Create invoice settings
+- PUT /invoices/settings - Update invoice settings
+- GET /invoices/stats - Get invoice statistics
+"""
+
+import logging
+from pathlib import Path
+
+from fastapi import APIRouter, Depends, HTTPException, Query
+from fastapi.responses import FileResponse
+from sqlalchemy.orm import Session
+
+from app.api.deps import get_current_vendor_api
+from app.core.database import get_db
+from app.services.invoice_service import (
+    InvoiceNotFoundException,
+    InvoiceSettingsNotFoundException,
+    invoice_service,
+)
+from models.database.user import User
+from models.schema.invoice import (
+    InvoiceCreate,
+    InvoiceListPaginatedResponse,
+    InvoiceListResponse,
+    InvoiceResponse,
+    InvoiceStatusUpdate,
+    VendorInvoiceSettingsCreate,
+    VendorInvoiceSettingsResponse,
+    VendorInvoiceSettingsUpdate,
+)
+
+router = APIRouter(prefix="/invoices")
+logger = logging.getLogger(__name__)
+
+
+# ============================================================================
+# Invoice Settings
+# ============================================================================
+
+
+@router.get("/settings", response_model=VendorInvoiceSettingsResponse | None)
+def get_invoice_settings(
+    current_user: User = Depends(get_current_vendor_api),
+    db: Session = Depends(get_db),
+):
+    """
+    Get vendor invoice settings.
+
+    Returns null if settings not yet configured.
+    """
+    settings = invoice_service.get_settings(db, current_user.token_vendor_id)
+    if settings:
+        return VendorInvoiceSettingsResponse.model_validate(settings)
+    return None
+
+
+@router.post("/settings", response_model=VendorInvoiceSettingsResponse, status_code=201)
+def create_invoice_settings(
+    data: VendorInvoiceSettingsCreate,
+    current_user: User = Depends(get_current_vendor_api),
+    db: Session = Depends(get_db),
+):
+    """
+    Create vendor invoice settings.
+
+    Required before creating invoices. Sets company details,
+    VAT number, invoice numbering preferences, and payment info.
+    """
+    try:
+        settings = invoice_service.create_settings(
+            db=db,
+            vendor_id=current_user.token_vendor_id,
+            data=data,
+        )
+        return VendorInvoiceSettingsResponse.model_validate(settings)
+    except Exception as e:
+        logger.error(f"Failed to create invoice settings: {e}")
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.put("/settings", response_model=VendorInvoiceSettingsResponse)
+def update_invoice_settings(
+    data: VendorInvoiceSettingsUpdate,
+    current_user: User = Depends(get_current_vendor_api),
+    db: Session = Depends(get_db),
+):
+    """
+    Update vendor invoice settings.
+    """
+    try:
+        settings = invoice_service.update_settings(
+            db=db,
+            vendor_id=current_user.token_vendor_id,
+            data=data,
+        )
+        return VendorInvoiceSettingsResponse.model_validate(settings)
+    except InvoiceSettingsNotFoundException:
+        raise HTTPException(
+            status_code=404,
+            detail="Invoice settings not found. Create settings first.",
+        )
+    except Exception as e:
+        logger.error(f"Failed to update invoice settings: {e}")
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+# ============================================================================
+# Invoice Statistics
+# ============================================================================
+
+
+@router.get("/stats")
+def get_invoice_stats(
+    current_user: User = Depends(get_current_vendor_api),
+    db: Session = Depends(get_db),
+):
+    """
+    Get invoice statistics for the vendor.
+
+    Returns:
+    - total_invoices: Total number of invoices
+    - total_revenue: Total revenue from issued/paid invoices (EUR)
+    - draft_count: Number of draft invoices
+    - paid_count: Number of paid invoices
+    """
+    return invoice_service.get_invoice_stats(db, current_user.token_vendor_id)
+
+
+# ============================================================================
+# Invoice CRUD
+# ============================================================================
+
+
+@router.get("", response_model=InvoiceListPaginatedResponse)
+def list_invoices(
+    page: int = Query(1, ge=1, description="Page number"),
+    per_page: int = Query(20, ge=1, le=100, description="Items per page"),
+    status: str | None = Query(None, description="Filter by status"),
+    current_user: User = Depends(get_current_vendor_api),
+    db: Session = Depends(get_db),
+):
+    """
+    List vendor invoices with pagination.
+
+    Supports filtering by status: draft, issued, paid, cancelled
+    """
+    invoices, total = invoice_service.list_invoices(
+        db=db,
+        vendor_id=current_user.token_vendor_id,
+        status=status,
+        page=page,
+        per_page=per_page,
+    )
+
+    # Build response with buyer name from snapshot
+    items = []
+    for inv in invoices:
+        buyer_name = inv.buyer_details.get("name") if inv.buyer_details else None
+        items.append(
+            InvoiceListResponse(
+                id=inv.id,
+                invoice_number=inv.invoice_number,
+                invoice_date=inv.invoice_date,
+                status=inv.status,
+                currency=inv.currency,
+                total_cents=inv.total_cents,
+                order_id=inv.order_id,
+                buyer_name=buyer_name,
+            )
+        )
+
+    pages = (total + per_page - 1) // per_page if total > 0 else 1
+
+    return InvoiceListPaginatedResponse(
+        items=items,
+        total=total,
+        page=page,
+        per_page=per_page,
+        pages=pages,
+    )
+
+
+@router.get("/{invoice_id}", response_model=InvoiceResponse)
+def get_invoice(
+    invoice_id: int,
+    current_user: User = Depends(get_current_vendor_api),
+    db: Session = Depends(get_db),
+):
+    """
+    Get invoice details by ID.
+    """
+    try:
+        invoice = invoice_service.get_invoice_or_raise(
+            db=db,
+            vendor_id=current_user.token_vendor_id,
+            invoice_id=invoice_id,
+        )
+        return InvoiceResponse.model_validate(invoice)
+    except InvoiceNotFoundException:
+        raise HTTPException(status_code=404, detail="Invoice not found")
+
+
+@router.post("", response_model=InvoiceResponse, status_code=201)
+def create_invoice(
+    data: InvoiceCreate,
+    current_user: User = Depends(get_current_vendor_api),
+    db: Session = Depends(get_db),
+):
+    """
+    Create an invoice from an order.
+
+    Automatically:
+    - Captures seller/buyer details snapshots
+    - Calculates VAT based on buyer country and OSS settings
+    - Generates invoice number
+    """
+    try:
+        invoice = invoice_service.create_invoice_from_order(
+            db=db,
+            vendor_id=current_user.token_vendor_id,
+            order_id=data.order_id,
+            notes=data.notes,
+        )
+        return InvoiceResponse.model_validate(invoice)
+    except InvoiceSettingsNotFoundException:
+        raise HTTPException(
+            status_code=400,
+            detail="Invoice settings not configured. Set up invoice settings first.",
+        )
+    except Exception as e:
+        logger.error(f"Failed to create invoice: {e}")
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.put("/{invoice_id}/status", response_model=InvoiceResponse)
+def update_invoice_status(
+    invoice_id: int,
+    data: InvoiceStatusUpdate,
+    current_user: User = Depends(get_current_vendor_api),
+    db: Session = Depends(get_db),
+):
+    """
+    Update invoice status.
+
+    Valid statuses:
+    - draft: Invoice created but not yet sent
+    - issued: Invoice sent to customer
+    - paid: Payment received
+    - cancelled: Invoice cancelled
+
+    Note: Cancelled invoices cannot be modified.
+    """
+    try:
+        invoice = invoice_service.update_status(
+            db=db,
+            vendor_id=current_user.token_vendor_id,
+            invoice_id=invoice_id,
+            new_status=data.status,
+        )
+        return InvoiceResponse.model_validate(invoice)
+    except InvoiceNotFoundException:
+        raise HTTPException(status_code=404, detail="Invoice not found")
+    except Exception as e:
+        logger.error(f"Failed to update invoice status: {e}")
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+# ============================================================================
+# PDF Generation
+# ============================================================================
+
+
+@router.post("/{invoice_id}/pdf")
+def generate_invoice_pdf(
+    invoice_id: int,
+    regenerate: bool = Query(False, description="Force regenerate if exists"),
+    current_user: User = Depends(get_current_vendor_api),
+    db: Session = Depends(get_db),
+):
+    """
+    Generate PDF for an invoice.
+
+    Set regenerate=true to force regeneration if PDF already exists.
+    Returns the path to the generated PDF.
+    """
+    try:
+        pdf_path = invoice_service.generate_pdf(
+            db=db,
+            vendor_id=current_user.token_vendor_id,
+            invoice_id=invoice_id,
+            force_regenerate=regenerate,
+        )
+        return {"pdf_path": pdf_path, "message": "PDF generated successfully"}
+    except InvoiceNotFoundException:
+        raise HTTPException(status_code=404, detail="Invoice not found")
+    except Exception as e:
+        logger.error(f"Failed to generate PDF: {e}")
+        raise HTTPException(status_code=500, detail=f"Failed to generate PDF: {str(e)}")
+
+
+@router.get("/{invoice_id}/pdf")
+def download_invoice_pdf(
+    invoice_id: int,
+    current_user: User = Depends(get_current_vendor_api),
+    db: Session = Depends(get_db),
+):
+    """
+    Download invoice PDF.
+
+    Returns the PDF file for download.
+    Generates PDF if not already generated.
+    """
+    try:
+        # Check if PDF exists, generate if not
+        pdf_path = invoice_service.get_pdf_path(
+            db=db,
+            vendor_id=current_user.token_vendor_id,
+            invoice_id=invoice_id,
+        )
+
+        if not pdf_path:
+            # Generate PDF
+            pdf_path = invoice_service.generate_pdf(
+                db=db,
+                vendor_id=current_user.token_vendor_id,
+                invoice_id=invoice_id,
+            )
+
+        # Verify file exists
+        if not Path(pdf_path).exists():
+            raise HTTPException(status_code=404, detail="PDF file not found")
+
+        # Get invoice for filename
+        invoice = invoice_service.get_invoice_or_raise(
+            db=db,
+            vendor_id=current_user.token_vendor_id,
+            invoice_id=invoice_id,
+        )
+
+        filename = f"invoice-{invoice.invoice_number}.pdf"
+
+        return FileResponse(
+            path=pdf_path,
+            media_type="application/pdf",
+            filename=filename,
+            headers={
+                "Content-Disposition": f'attachment; filename="{filename}"'
+            },
+        )
+    except InvoiceNotFoundException:
+        raise HTTPException(status_code=404, detail="Invoice not found")
+    except Exception as e:
+        logger.error(f"Failed to download PDF: {e}")
+        raise HTTPException(status_code=500, detail=f"Failed to download PDF: {str(e)}")
--- a/app/services/invoice_pdf_service.py
+++ b/app/services/invoice_pdf_service.py
@@ -0,0 +1,164 @@
+# app/services/invoice_pdf_service.py
+"""
+Invoice PDF generation service using WeasyPrint.
+
+Renders HTML invoice templates to PDF using Jinja2 + WeasyPrint.
+Stores generated PDFs in the configured storage location.
+"""
+
+import logging
+import os
+from datetime import UTC, datetime
+from pathlib import Path
+
+from jinja2 import Environment, FileSystemLoader
+from sqlalchemy.orm import Session
+
+from app.core.config import settings
+from models.database.invoice import Invoice
+
+logger = logging.getLogger(__name__)
+
+# Template directory
+TEMPLATE_DIR = Path(__file__).parent.parent / "templates" / "invoices"
+
+# PDF storage directory (relative to project root)
+PDF_STORAGE_DIR = Path("storage") / "invoices"
+
+
+class InvoicePDFService:
+    """Service for generating invoice PDFs."""
+
+    def __init__(self):
+        """Initialize the PDF service with Jinja2 environment."""
+        self.env = Environment(
+            loader=FileSystemLoader(str(TEMPLATE_DIR)),
+            autoescape=True,
+        )
+
+    def _ensure_storage_dir(self, vendor_id: int) -> Path:
+        """Ensure the storage directory exists for a vendor."""
+        storage_path = PDF_STORAGE_DIR / str(vendor_id)
+        storage_path.mkdir(parents=True, exist_ok=True)
+        return storage_path
+
+    def _get_pdf_filename(self, invoice: Invoice) -> str:
+        """Generate PDF filename for an invoice."""
+        # Sanitize invoice number for filename
+        safe_number = invoice.invoice_number.replace("/", "-").replace("\\", "-")
+        return f"{safe_number}.pdf"
+
+    def generate_pdf(
+        self,
+        db: Session,
+        invoice: Invoice,
+        force_regenerate: bool = False,
+    ) -> str:
+        """
+        Generate PDF for an invoice.
+
+        Args:
+            db: Database session
+            invoice: Invoice to generate PDF for
+            force_regenerate: If True, regenerate even if PDF already exists
+
+        Returns:
+            Path to the generated PDF file
+        """
+        # Check if PDF already exists
+        if invoice.pdf_path and not force_regenerate:
+            if Path(invoice.pdf_path).exists():
+                logger.debug(f"PDF already exists for invoice {invoice.invoice_number}")
+                return invoice.pdf_path
+
+        # Ensure storage directory exists
+        storage_dir = self._ensure_storage_dir(invoice.vendor_id)
+        pdf_filename = self._get_pdf_filename(invoice)
+        pdf_path = storage_dir / pdf_filename
+
+        # Render HTML template
+        html_content = self._render_html(invoice)
+
+        # Generate PDF using WeasyPrint
+        try:
+            from weasyprint import HTML
+
+            html_doc = HTML(string=html_content, base_url=str(TEMPLATE_DIR))
+            html_doc.write_pdf(str(pdf_path))
+
+            logger.info(f"Generated PDF for invoice {invoice.invoice_number} at {pdf_path}")
+        except ImportError:
+            logger.error("WeasyPrint not installed. Install with: pip install weasyprint")
+            raise RuntimeError("WeasyPrint not installed")
+        except Exception as e:
+            logger.error(f"Failed to generate PDF for invoice {invoice.invoice_number}: {e}")
+            raise
+
+        # Update invoice record with PDF path and timestamp
+        invoice.pdf_path = str(pdf_path)
+        invoice.pdf_generated_at = datetime.now(UTC)
+        db.commit()
+
+        return str(pdf_path)
+
+    def _render_html(self, invoice: Invoice) -> str:
+        """Render the invoice HTML template."""
+        template = self.env.get_template("invoice.html")
+
+        # Prepare template context
+        context = {
+            "invoice": invoice,
+            "seller": invoice.seller_details,
+            "buyer": invoice.buyer_details,
+            "line_items": invoice.line_items,
+            "bank_details": invoice.bank_details,
+            "payment_terms": invoice.payment_terms,
+            "footer_text": invoice.footer_text,
+            "now": datetime.now(UTC),
+        }
+
+        return template.render(**context)
+
+    def get_pdf_path(self, invoice: Invoice) -> str | None:
+        """Get the PDF path for an invoice if it exists."""
+        if invoice.pdf_path and Path(invoice.pdf_path).exists():
+            return invoice.pdf_path
+        return None
+
+    def delete_pdf(self, invoice: Invoice, db: Session) -> bool:
+        """
+        Delete the PDF file for an invoice.
+
+        Args:
+            invoice: Invoice whose PDF to delete
+            db: Database session
+
+        Returns:
+            True if deleted, False if not found
+        """
+        if not invoice.pdf_path:
+            return False
+
+        pdf_path = Path(invoice.pdf_path)
+        if pdf_path.exists():
+            try:
+                pdf_path.unlink()
+                logger.info(f"Deleted PDF for invoice {invoice.invoice_number}")
+            except Exception as e:
+                logger.error(f"Failed to delete PDF {pdf_path}: {e}")
+                return False
+
+        # Clear PDF fields
+        invoice.pdf_path = None
+        invoice.pdf_generated_at = None
+        db.commit()
+
+        return True
+
+    def regenerate_pdf(self, db: Session, invoice: Invoice) -> str:
+        """Force regenerate PDF for an invoice."""
+        return self.generate_pdf(db, invoice, force_regenerate=True)
+
+
+# Singleton instance
+invoice_pdf_service = InvoicePDFService()
--- a/app/services/invoice_service.py
+++ b/app/services/invoice_service.py
@@ -0,0 +1,666 @@
+# app/services/invoice_service.py
+"""
+Invoice service for generating and managing invoices.
+
+Handles:
+- Vendor invoice settings management
+- Invoice generation from orders
+- VAT calculation (Luxembourg, EU, B2B reverse charge)
+- Invoice number sequencing
+- PDF generation (via separate module)
+
+VAT Logic:
+- Luxembourg domestic: 17% (standard), 8% (reduced), 3% (super-reduced), 14% (intermediate)
+- EU cross-border B2C with OSS: Use destination country VAT rate
+- EU cross-border B2C without OSS: Use Luxembourg VAT rate (origin principle)
+- EU B2B with valid VAT number: Reverse charge (0% VAT)
+"""
+
+import logging
+from datetime import UTC, datetime
+from decimal import Decimal
+from typing import Any
+
+from sqlalchemy import and_, func
+from sqlalchemy.orm import Session
+
+from app.exceptions import (
+    OrderNotFoundException,
+    ValidationException,
+)
+from models.database.invoice import (
+    Invoice,
+    InvoiceStatus,
+    VATRegime,
+    VendorInvoiceSettings,
+)
+from models.database.order import Order
+from models.database.vendor import Vendor
+from models.schema.invoice import (
+    InvoiceBuyerDetails,
+    InvoiceCreate,
+    InvoiceLineItem,
+    InvoiceManualCreate,
+    InvoiceSellerDetails,
+    VendorInvoiceSettingsCreate,
+    VendorInvoiceSettingsUpdate,
+)
+
+logger = logging.getLogger(__name__)
+
+
+# EU VAT rates by country code (2024 standard rates)
+EU_VAT_RATES: dict[str, Decimal] = {
+    "AT": Decimal("20.00"),  # Austria
+    "BE": Decimal("21.00"),  # Belgium
+    "BG": Decimal("20.00"),  # Bulgaria
+    "HR": Decimal("25.00"),  # Croatia
+    "CY": Decimal("19.00"),  # Cyprus
+    "CZ": Decimal("21.00"),  # Czech Republic
+    "DK": Decimal("25.00"),  # Denmark
+    "EE": Decimal("22.00"),  # Estonia
+    "FI": Decimal("24.00"),  # Finland
+    "FR": Decimal("20.00"),  # France
+    "DE": Decimal("19.00"),  # Germany
+    "GR": Decimal("24.00"),  # Greece
+    "HU": Decimal("27.00"),  # Hungary
+    "IE": Decimal("23.00"),  # Ireland
+    "IT": Decimal("22.00"),  # Italy
+    "LV": Decimal("21.00"),  # Latvia
+    "LT": Decimal("21.00"),  # Lithuania
+    "LU": Decimal("17.00"),  # Luxembourg (standard)
+    "MT": Decimal("18.00"),  # Malta
+    "NL": Decimal("21.00"),  # Netherlands
+    "PL": Decimal("23.00"),  # Poland
+    "PT": Decimal("23.00"),  # Portugal
+    "RO": Decimal("19.00"),  # Romania
+    "SK": Decimal("20.00"),  # Slovakia
+    "SI": Decimal("22.00"),  # Slovenia
+    "ES": Decimal("21.00"),  # Spain
+    "SE": Decimal("25.00"),  # Sweden
+}
+
+# Luxembourg specific VAT rates
+LU_VAT_RATES = {
+    "standard": Decimal("17.00"),
+    "intermediate": Decimal("14.00"),
+    "reduced": Decimal("8.00"),
+    "super_reduced": Decimal("3.00"),
+}
+
+
+class InvoiceNotFoundException(Exception):
+    """Raised when invoice not found."""
+
+    pass
+
+
+class InvoiceSettingsNotFoundException(Exception):
+    """Raised when vendor invoice settings not found."""
+
+    pass
+
+
+class InvoiceService:
+    """Service for invoice operations."""
+
+    # =========================================================================
+    # VAT Calculation
+    # =========================================================================
+
+    def get_vat_rate_for_country(self, country_iso: str) -> Decimal:
+        """Get standard VAT rate for EU country."""
+        return EU_VAT_RATES.get(country_iso.upper(), Decimal("0.00"))
+
+    def get_vat_rate_label(self, country_iso: str, vat_rate: Decimal) -> str:
+        """Get human-readable VAT rate label."""
+        country_names = {
+            "AT": "Austria",
+            "BE": "Belgium",
+            "BG": "Bulgaria",
+            "HR": "Croatia",
+            "CY": "Cyprus",
+            "CZ": "Czech Republic",
+            "DK": "Denmark",
+            "EE": "Estonia",
+            "FI": "Finland",
+            "FR": "France",
+            "DE": "Germany",
+            "GR": "Greece",
+            "HU": "Hungary",
+            "IE": "Ireland",
+            "IT": "Italy",
+            "LV": "Latvia",
+            "LT": "Lithuania",
+            "LU": "Luxembourg",
+            "MT": "Malta",
+            "NL": "Netherlands",
+            "PL": "Poland",
+            "PT": "Portugal",
+            "RO": "Romania",
+            "SK": "Slovakia",
+            "SI": "Slovenia",
+            "ES": "Spain",
+            "SE": "Sweden",
+        }
+        country_name = country_names.get(country_iso.upper(), country_iso)
+        return f"{country_name} VAT {vat_rate}%"
+
+    def determine_vat_regime(
+        self,
+        seller_country: str,
+        buyer_country: str,
+        buyer_vat_number: str | None,
+        seller_oss_registered: bool,
+    ) -> tuple[VATRegime, Decimal, str | None]:
+        """
+        Determine VAT regime and rate for invoice.
+
+        Returns: (regime, vat_rate, destination_country)
+        """
+        seller_country = seller_country.upper()
+        buyer_country = buyer_country.upper()
+
+        # Same country = domestic VAT
+        if seller_country == buyer_country:
+            vat_rate = self.get_vat_rate_for_country(seller_country)
+            return VATRegime.DOMESTIC, vat_rate, None
+
+        # Different EU countries
+        if buyer_country in EU_VAT_RATES:
+            # B2B with valid VAT number = reverse charge
+            if buyer_vat_number:
+                return VATRegime.REVERSE_CHARGE, Decimal("0.00"), buyer_country
+
+            # B2C cross-border
+            if seller_oss_registered:
+                # OSS: use destination country VAT
+                vat_rate = self.get_vat_rate_for_country(buyer_country)
+                return VATRegime.OSS, vat_rate, buyer_country
+            else:
+                # No OSS: use origin country VAT
+                vat_rate = self.get_vat_rate_for_country(seller_country)
+                return VATRegime.ORIGIN, vat_rate, buyer_country
+
+        # Non-EU = VAT exempt (export)
+        return VATRegime.EXEMPT, Decimal("0.00"), buyer_country
+
+    # =========================================================================
+    # Invoice Settings Management
+    # =========================================================================
+
+    def get_settings(
+        self, db: Session, vendor_id: int
+    ) -> VendorInvoiceSettings | None:
+        """Get vendor invoice settings."""
+        return (
+            db.query(VendorInvoiceSettings)
+            .filter(VendorInvoiceSettings.vendor_id == vendor_id)
+            .first()
+        )
+
+    def get_settings_or_raise(
+        self, db: Session, vendor_id: int
+    ) -> VendorInvoiceSettings:
+        """Get vendor invoice settings or raise exception."""
+        settings = self.get_settings(db, vendor_id)
+        if not settings:
+            raise InvoiceSettingsNotFoundException(
+                f"Invoice settings not configured for vendor {vendor_id}"
+            )
+        return settings
+
+    def create_settings(
+        self,
+        db: Session,
+        vendor_id: int,
+        data: VendorInvoiceSettingsCreate,
+    ) -> VendorInvoiceSettings:
+        """Create vendor invoice settings."""
+        # Check if settings already exist
+        existing = self.get_settings(db, vendor_id)
+        if existing:
+            raise ValidationException(
+                "Invoice settings already exist for this vendor"
+            )
+
+        settings = VendorInvoiceSettings(
+            vendor_id=vendor_id,
+            **data.model_dump(),
+        )
+        db.add(settings)
+        db.commit()
+        db.refresh(settings)
+
+        logger.info(f"Created invoice settings for vendor {vendor_id}")
+        return settings
+
+    def update_settings(
+        self,
+        db: Session,
+        vendor_id: int,
+        data: VendorInvoiceSettingsUpdate,
+    ) -> VendorInvoiceSettings:
+        """Update vendor invoice settings."""
+        settings = self.get_settings_or_raise(db, vendor_id)
+
+        update_data = data.model_dump(exclude_unset=True)
+        for key, value in update_data.items():
+            setattr(settings, key, value)
+
+        settings.updated_at = datetime.now(UTC)
+        db.commit()
+        db.refresh(settings)
+
+        logger.info(f"Updated invoice settings for vendor {vendor_id}")
+        return settings
+
+    def create_settings_from_vendor(
+        self,
+        db: Session,
+        vendor: Vendor,
+    ) -> VendorInvoiceSettings:
+        """
+        Create invoice settings from vendor/company info.
+
+        Used for initial setup based on existing vendor data.
+        """
+        company = vendor.company
+
+        settings = VendorInvoiceSettings(
+            vendor_id=vendor.id,
+            company_name=company.legal_name if company else vendor.name,
+            company_address=vendor.effective_business_address,
+            company_city=None,  # Would need to parse from address
+            company_postal_code=None,
+            company_country="LU",
+            vat_number=vendor.effective_tax_number,
+            is_vat_registered=bool(vendor.effective_tax_number),
+        )
+        db.add(settings)
+        db.commit()
+        db.refresh(settings)
+
+        logger.info(f"Created invoice settings from vendor data for vendor {vendor.id}")
+        return settings
+
+    # =========================================================================
+    # Invoice Number Generation
+    # =========================================================================
+
+    def _get_next_invoice_number(
+        self, db: Session, settings: VendorInvoiceSettings
+    ) -> str:
+        """Generate next invoice number and increment counter."""
+        number = str(settings.invoice_next_number).zfill(settings.invoice_number_padding)
+        invoice_number = f"{settings.invoice_prefix}{number}"
+
+        # Increment counter
+        settings.invoice_next_number += 1
+        db.flush()
+
+        return invoice_number
+
+    # =========================================================================
+    # Invoice Creation
+    # =========================================================================
+
+    def create_invoice_from_order(
+        self,
+        db: Session,
+        vendor_id: int,
+        order_id: int,
+        notes: str | None = None,
+    ) -> Invoice:
+        """
+        Create an invoice from an order.
+
+        Captures snapshots of seller/buyer details and calculates VAT.
+        """
+        # Get invoice settings
+        settings = self.get_settings_or_raise(db, vendor_id)
+
+        # Get order
+        order = (
+            db.query(Order)
+            .filter(and_(Order.id == order_id, Order.vendor_id == vendor_id))
+            .first()
+        )
+        if not order:
+            raise OrderNotFoundException(f"Order {order_id} not found")
+
+        # Check for existing invoice
+        existing = (
+            db.query(Invoice)
+            .filter(and_(Invoice.order_id == order_id, Invoice.vendor_id == vendor_id))
+            .first()
+        )
+        if existing:
+            raise ValidationException(f"Invoice already exists for order {order_id}")
+
+        # Determine VAT regime
+        buyer_country = order.bill_country_iso
+        vat_regime, vat_rate, destination_country = self.determine_vat_regime(
+            seller_country=settings.company_country,
+            buyer_country=buyer_country,
+            buyer_vat_number=None,  # TODO: Add B2B VAT number support
+            seller_oss_registered=settings.is_oss_registered,
+        )
+
+        # Build seller details snapshot
+        seller_details = {
+            "company_name": settings.company_name,
+            "address": settings.company_address,
+            "city": settings.company_city,
+            "postal_code": settings.company_postal_code,
+            "country": settings.company_country,
+            "vat_number": settings.vat_number,
+        }
+
+        # Build buyer details snapshot
+        buyer_details = {
+            "name": f"{order.bill_first_name} {order.bill_last_name}".strip(),
+            "email": order.customer_email,
+            "address": order.bill_address_line_1,
+            "city": order.bill_city,
+            "postal_code": order.bill_postal_code,
+            "country": order.bill_country_iso,
+            "vat_number": None,  # TODO: B2B support
+        }
+        if order.bill_company:
+            buyer_details["company"] = order.bill_company
+
+        # Build line items from order items
+        line_items = []
+        for item in order.items:
+            line_items.append({
+                "description": item.product_name,
+                "quantity": item.quantity,
+                "unit_price_cents": item.unit_price_cents,
+                "total_cents": item.total_price_cents,
+                "sku": item.product_sku,
+                "ean": item.gtin,
+            })
+
+        # Calculate amounts
+        subtotal_cents = sum(item["total_cents"] for item in line_items)
+
+        # Calculate VAT
+        if vat_rate > 0:
+            vat_amount_cents = int(
+                subtotal_cents * float(vat_rate) / 100
+            )
+        else:
+            vat_amount_cents = 0
+
+        total_cents = subtotal_cents + vat_amount_cents
+
+        # Get VAT label
+        vat_rate_label = None
+        if vat_rate > 0:
+            if destination_country:
+                vat_rate_label = self.get_vat_rate_label(destination_country, vat_rate)
+            else:
+                vat_rate_label = self.get_vat_rate_label(settings.company_country, vat_rate)
+
+        # Generate invoice number
+        invoice_number = self._get_next_invoice_number(db, settings)
+
+        # Create invoice
+        invoice = Invoice(
+            vendor_id=vendor_id,
+            order_id=order_id,
+            invoice_number=invoice_number,
+            invoice_date=datetime.now(UTC),
+            status=InvoiceStatus.DRAFT.value,
+            seller_details=seller_details,
+            buyer_details=buyer_details,
+            line_items=line_items,
+            vat_regime=vat_regime.value,
+            destination_country=destination_country,
+            vat_rate=vat_rate,
+            vat_rate_label=vat_rate_label,
+            currency=order.currency,
+            subtotal_cents=subtotal_cents,
+            vat_amount_cents=vat_amount_cents,
+            total_cents=total_cents,
+            payment_terms=settings.payment_terms,
+            bank_details={
+                "bank_name": settings.bank_name,
+                "iban": settings.bank_iban,
+                "bic": settings.bank_bic,
+            } if settings.bank_iban else None,
+            footer_text=settings.footer_text,
+            notes=notes,
+        )
+
+        db.add(invoice)
+        db.commit()
+        db.refresh(invoice)
+
+        logger.info(
+            f"Created invoice {invoice_number} for order {order_id} "
+            f"(vendor={vendor_id}, total={total_cents/100:.2f} EUR, VAT={vat_regime.value})"
+        )
+
+        return invoice
+
+    # =========================================================================
+    # Invoice Retrieval
+    # =========================================================================
+
+    def get_invoice(
+        self, db: Session, vendor_id: int, invoice_id: int
+    ) -> Invoice | None:
+        """Get invoice by ID."""
+        return (
+            db.query(Invoice)
+            .filter(and_(Invoice.id == invoice_id, Invoice.vendor_id == vendor_id))
+            .first()
+        )
+
+    def get_invoice_or_raise(
+        self, db: Session, vendor_id: int, invoice_id: int
+    ) -> Invoice:
+        """Get invoice by ID or raise exception."""
+        invoice = self.get_invoice(db, vendor_id, invoice_id)
+        if not invoice:
+            raise InvoiceNotFoundException(f"Invoice {invoice_id} not found")
+        return invoice
+
+    def get_invoice_by_number(
+        self, db: Session, vendor_id: int, invoice_number: str
+    ) -> Invoice | None:
+        """Get invoice by invoice number."""
+        return (
+            db.query(Invoice)
+            .filter(
+                and_(
+                    Invoice.invoice_number == invoice_number,
+                    Invoice.vendor_id == vendor_id,
+                )
+            )
+            .first()
+        )
+
+    def list_invoices(
+        self,
+        db: Session,
+        vendor_id: int,
+        status: str | None = None,
+        page: int = 1,
+        per_page: int = 20,
+    ) -> tuple[list[Invoice], int]:
+        """
+        List invoices for vendor with pagination.
+
+        Returns: (invoices, total_count)
+        """
+        query = db.query(Invoice).filter(Invoice.vendor_id == vendor_id)
+
+        if status:
+            query = query.filter(Invoice.status == status)
+
+        # Get total count
+        total = query.count()
+
+        # Apply pagination and order
+        invoices = (
+            query.order_by(Invoice.invoice_date.desc())
+            .offset((page - 1) * per_page)
+            .limit(per_page)
+            .all()
+        )
+
+        return invoices, total
+
+    # =========================================================================
+    # Invoice Status Management
+    # =========================================================================
+
+    def update_status(
+        self,
+        db: Session,
+        vendor_id: int,
+        invoice_id: int,
+        new_status: str,
+    ) -> Invoice:
+        """Update invoice status."""
+        invoice = self.get_invoice_or_raise(db, vendor_id, invoice_id)
+
+        # Validate status transition
+        valid_statuses = [s.value for s in InvoiceStatus]
+        if new_status not in valid_statuses:
+            raise ValidationException(f"Invalid status: {new_status}")
+
+        # Cannot change cancelled invoices
+        if invoice.status == InvoiceStatus.CANCELLED.value:
+            raise ValidationException("Cannot change status of cancelled invoice")
+
+        invoice.status = new_status
+        invoice.updated_at = datetime.now(UTC)
+        db.commit()
+        db.refresh(invoice)
+
+        logger.info(f"Updated invoice {invoice.invoice_number} status to {new_status}")
+        return invoice
+
+    def mark_as_issued(
+        self, db: Session, vendor_id: int, invoice_id: int
+    ) -> Invoice:
+        """Mark invoice as issued."""
+        return self.update_status(db, vendor_id, invoice_id, InvoiceStatus.ISSUED.value)
+
+    def mark_as_paid(
+        self, db: Session, vendor_id: int, invoice_id: int
+    ) -> Invoice:
+        """Mark invoice as paid."""
+        return self.update_status(db, vendor_id, invoice_id, InvoiceStatus.PAID.value)
+
+    def cancel_invoice(
+        self, db: Session, vendor_id: int, invoice_id: int
+    ) -> Invoice:
+        """Cancel invoice."""
+        return self.update_status(
+            db, vendor_id, invoice_id, InvoiceStatus.CANCELLED.value
+        )
+
+    # =========================================================================
+    # Statistics
+    # =========================================================================
+
+    def get_invoice_stats(
+        self, db: Session, vendor_id: int
+    ) -> dict[str, Any]:
+        """Get invoice statistics for vendor."""
+        total_count = (
+            db.query(func.count(Invoice.id))
+            .filter(Invoice.vendor_id == vendor_id)
+            .scalar()
+            or 0
+        )
+
+        total_revenue = (
+            db.query(func.sum(Invoice.total_cents))
+            .filter(
+                and_(
+                    Invoice.vendor_id == vendor_id,
+                    Invoice.status.in_([
+                        InvoiceStatus.ISSUED.value,
+                        InvoiceStatus.PAID.value,
+                    ]),
+                )
+            )
+            .scalar()
+            or 0
+        )
+
+        draft_count = (
+            db.query(func.count(Invoice.id))
+            .filter(
+                and_(
+                    Invoice.vendor_id == vendor_id,
+                    Invoice.status == InvoiceStatus.DRAFT.value,
+                )
+            )
+            .scalar()
+            or 0
+        )
+
+        paid_count = (
+            db.query(func.count(Invoice.id))
+            .filter(
+                and_(
+                    Invoice.vendor_id == vendor_id,
+                    Invoice.status == InvoiceStatus.PAID.value,
+                )
+            )
+            .scalar()
+            or 0
+        )
+
+        return {
+            "total_invoices": total_count,
+            "total_revenue_cents": total_revenue,
+            "total_revenue": total_revenue / 100 if total_revenue else 0,
+            "draft_count": draft_count,
+            "paid_count": paid_count,
+        }
+
+
+    # =========================================================================
+    # PDF Generation
+    # =========================================================================
+
+    def generate_pdf(
+        self,
+        db: Session,
+        vendor_id: int,
+        invoice_id: int,
+        force_regenerate: bool = False,
+    ) -> str:
+        """
+        Generate PDF for an invoice.
+
+        Returns path to the generated PDF.
+        """
+        from app.services.invoice_pdf_service import invoice_pdf_service
+
+        invoice = self.get_invoice_or_raise(db, vendor_id, invoice_id)
+        return invoice_pdf_service.generate_pdf(db, invoice, force_regenerate)
+
+    def get_pdf_path(
+        self,
+        db: Session,
+        vendor_id: int,
+        invoice_id: int,
+    ) -> str | None:
+        """Get PDF path for an invoice if it exists."""
+        from app.services.invoice_pdf_service import invoice_pdf_service
+
+        invoice = self.get_invoice_or_raise(db, vendor_id, invoice_id)
+        return invoice_pdf_service.get_pdf_path(invoice)
+
+
+# Singleton instance
+invoice_service = InvoiceService()
--- a/app/services/letzshop/order_service.py
+++ b/app/services/letzshop/order_service.py
@@ -15,6 +15,7 @@ from sqlalchemy import String, and_, func, or_
 from sqlalchemy.orm import Session

 from app.services.order_service import order_service as unified_order_service
+from app.services.subscription_service import subscription_service
 from models.database.letzshop import (
    LetzshopFulfillmentQueue,
    LetzshopHistoricalImportJob,
@@ -792,6 +793,7 @@ class LetzshopOrderService:
            "updated": 0,
            "skipped": 0,
            "errors": 0,
+            "limit_exceeded": 0,
            "products_matched": 0,
            "products_not_found": 0,
            "eans_processed": set(),
@@ -800,6 +802,10 @@ class LetzshopOrderService:
            "error_messages": [],
        }

+        # Get subscription usage upfront for batch efficiency
+        usage = subscription_service.get_usage(self.db, vendor_id)
+        orders_remaining = usage.orders_remaining  # None = unlimited
+
        for i, shipment in enumerate(shipments):
            shipment_id = shipment.get("id")
            if not shipment_id:
@@ -844,11 +850,24 @@ class LetzshopOrderService:
                else:
                    stats["skipped"] += 1
            else:
+                # Check tier limit before creating order
+                if orders_remaining is not None and orders_remaining <= 0:
+                    stats["limit_exceeded"] += 1
+                    stats["error_messages"].append(
+                        f"Shipment {shipment_id}: Order limit reached"
+                    )
+                    continue
+
                # Create new order using unified service
                try:
                    self.create_order(vendor_id, shipment)
                    self.db.commit()  # noqa: SVC-006 - background task needs incremental commits
                    stats["imported"] += 1
+
+                    # Decrement remaining count for batch efficiency
+                    if orders_remaining is not None:
+                        orders_remaining -= 1
+
                except Exception as e:
                    self.db.rollback()  # Rollback failed order
                    stats["errors"] += 1
--- a/app/services/order_service.py
+++ b/app/services/order_service.py
@@ -31,6 +31,10 @@ from app.exceptions import (
    ValidationException,
 )
 from app.services.order_item_exception_service import order_item_exception_service
+from app.services.subscription_service import (
+    subscription_service,
+    TierLimitExceededException,
+)
 from app.utils.money import Money, cents_to_euros, euros_to_cents
 from models.database.customer import Customer
 from models.database.marketplace_product import MarketplaceProduct
@@ -271,7 +275,11 @@ class OrderService:
        Raises:
            ValidationException: If order data is invalid
            InsufficientInventoryException: If not enough inventory
+            TierLimitExceededException: If vendor has reached order limit
        """
+        # Check tier limit before creating order
+        subscription_service.check_order_limit(db, vendor_id)
+
        try:
            # Get or create customer
            if order_data.customer_id:
@@ -428,6 +436,9 @@ class OrderService:
            db.flush()
            db.refresh(order)

+            # Increment order count for subscription tracking
+            subscription_service.increment_order_count(db, vendor_id)
+
            logger.info(
                f"Order {order.order_number} created for vendor {vendor_id}, "
                f"total: EUR {cents_to_euros(total_amount_cents):.2f}"
@@ -439,6 +450,7 @@ class OrderService:
            ValidationException,
            InsufficientInventoryException,
            CustomerNotFoundException,
+            TierLimitExceededException,
        ):
            raise
        except Exception as e:
@@ -450,6 +462,7 @@ class OrderService:
        db: Session,
        vendor_id: int,
        shipment_data: dict[str, Any],
+        skip_limit_check: bool = False,
    ) -> Order:
        """
        Create an order from Letzshop shipment data.
@@ -462,13 +475,27 @@ class OrderService:
            db: Database session
            vendor_id: Vendor ID
            shipment_data: Raw shipment data from Letzshop API
+            skip_limit_check: If True, skip tier limit check (for batch imports
+                              that check limit upfront)

        Returns:
            Created Order object

        Raises:
            ValidationException: If product not found by GTIN
+            TierLimitExceededException: If vendor has reached order limit
        """
+        # Check tier limit before creating order (unless skipped for batch ops)
+        if not skip_limit_check:
+            can_create, message = subscription_service.can_create_order(db, vendor_id)
+            if not can_create:
+                raise TierLimitExceededException(
+                    message=message or "Order limit exceeded",
+                    limit_type="orders",
+                    current=0,  # Will be filled by caller if needed
+                    limit=0,
+                )
+
        order_data = shipment_data.get("order", {})

        # Generate order number using Letzshop order number
@@ -777,6 +804,9 @@ class OrderService:
                f"order {order.order_number}"
            )

+        # Increment order count for subscription tracking
+        subscription_service.increment_order_count(db, vendor_id)
+
        logger.info(
            f"Letzshop order {order.order_number} created for vendor {vendor_id}, "
            f"status: {status}, items: {len(inventory_units)}"
--- a/app/services/subscription_service.py
+++ b/app/services/subscription_service.py
@@ -0,0 +1,512 @@
+# app/services/subscription_service.py
+"""
+Subscription service for tier-based access control.
+
+Handles:
+- Subscription creation and management
+- Tier limit enforcement
+- Usage tracking
+- Feature gating
+
+Usage:
+    from app.services.subscription_service import subscription_service
+
+    # Check if vendor can create an order
+    can_create, message = subscription_service.can_create_order(db, vendor_id)
+
+    # Increment order counter after successful order
+    subscription_service.increment_order_count(db, vendor_id)
+"""
+
+import logging
+from datetime import UTC, datetime, timedelta
+from typing import Any
+
+from sqlalchemy import func
+from sqlalchemy.orm import Session
+
+from models.database.product import Product
+from models.database.subscription import (
+    SubscriptionStatus,
+    TIER_LIMITS,
+    TierCode,
+    VendorSubscription,
+)
+from models.database.vendor import Vendor, VendorUser
+from models.schema.subscription import (
+    SubscriptionCreate,
+    SubscriptionUpdate,
+    SubscriptionUsage,
+    TierInfo,
+    TierLimits,
+)
+
+logger = logging.getLogger(__name__)
+
+
+class SubscriptionNotFoundException(Exception):
+    """Raised when subscription not found."""
+
+    pass
+
+
+class TierLimitExceededException(Exception):
+    """Raised when a tier limit is exceeded."""
+
+    def __init__(self, message: str, limit_type: str, current: int, limit: int):
+        super().__init__(message)
+        self.limit_type = limit_type
+        self.current = current
+        self.limit = limit
+
+
+class FeatureNotAvailableException(Exception):
+    """Raised when a feature is not available in current tier."""
+
+    def __init__(self, feature: str, current_tier: str, required_tier: str):
+        message = f"Feature '{feature}' requires {required_tier} tier (current: {current_tier})"
+        super().__init__(message)
+        self.feature = feature
+        self.current_tier = current_tier
+        self.required_tier = required_tier
+
+
+class SubscriptionService:
+    """Service for subscription and tier limit operations."""
+
+    # =========================================================================
+    # Tier Information
+    # =========================================================================
+
+    def get_tier_info(self, tier_code: str) -> TierInfo:
+        """Get full tier information."""
+        try:
+            tier = TierCode(tier_code)
+        except ValueError:
+            tier = TierCode.ESSENTIAL
+
+        limits = TIER_LIMITS[tier]
+        return TierInfo(
+            code=tier.value,
+            name=limits["name"],
+            price_monthly_cents=limits["price_monthly_cents"],
+            price_annual_cents=limits.get("price_annual_cents"),
+            limits=TierLimits(
+                orders_per_month=limits.get("orders_per_month"),
+                products_limit=limits.get("products_limit"),
+                team_members=limits.get("team_members"),
+                order_history_months=limits.get("order_history_months"),
+            ),
+            features=limits.get("features", []),
+        )
+
+    def get_all_tiers(self) -> list[TierInfo]:
+        """Get information for all tiers."""
+        return [
+            self.get_tier_info(tier.value)
+            for tier in TierCode
+        ]
+
+    # =========================================================================
+    # Subscription CRUD
+    # =========================================================================
+
+    def get_subscription(
+        self, db: Session, vendor_id: int
+    ) -> VendorSubscription | None:
+        """Get vendor subscription."""
+        return (
+            db.query(VendorSubscription)
+            .filter(VendorSubscription.vendor_id == vendor_id)
+            .first()
+        )
+
+    def get_subscription_or_raise(
+        self, db: Session, vendor_id: int
+    ) -> VendorSubscription:
+        """Get vendor subscription or raise exception."""
+        subscription = self.get_subscription(db, vendor_id)
+        if not subscription:
+            raise SubscriptionNotFoundException(
+                f"No subscription found for vendor {vendor_id}"
+            )
+        return subscription
+
+    def get_or_create_subscription(
+        self,
+        db: Session,
+        vendor_id: int,
+        tier: str = TierCode.ESSENTIAL.value,
+        trial_days: int = 14,
+    ) -> VendorSubscription:
+        """
+        Get existing subscription or create a new trial subscription.
+
+        Used when a vendor first accesses the system.
+        """
+        subscription = self.get_subscription(db, vendor_id)
+        if subscription:
+            return subscription
+
+        # Create new trial subscription
+        now = datetime.now(UTC)
+        trial_end = now + timedelta(days=trial_days)
+
+        subscription = VendorSubscription(
+            vendor_id=vendor_id,
+            tier=tier,
+            status=SubscriptionStatus.TRIAL.value,
+            period_start=now,
+            period_end=trial_end,
+            trial_ends_at=trial_end,
+            is_annual=False,
+        )
+
+        db.add(subscription)
+        db.commit()
+        db.refresh(subscription)
+
+        logger.info(
+            f"Created trial subscription for vendor {vendor_id} "
+            f"(tier={tier}, trial_ends={trial_end})"
+        )
+
+        return subscription
+
+    def create_subscription(
+        self,
+        db: Session,
+        vendor_id: int,
+        data: SubscriptionCreate,
+    ) -> VendorSubscription:
+        """Create a subscription for a vendor."""
+        # Check if subscription exists
+        existing = self.get_subscription(db, vendor_id)
+        if existing:
+            raise ValueError("Vendor already has a subscription")
+
+        now = datetime.now(UTC)
+
+        # Calculate period end based on billing cycle
+        if data.is_annual:
+            period_end = now + timedelta(days=365)
+        else:
+            period_end = now + timedelta(days=30)
+
+        # Handle trial
+        trial_ends_at = None
+        status = SubscriptionStatus.ACTIVE.value
+        if data.trial_days > 0:
+            trial_ends_at = now + timedelta(days=data.trial_days)
+            status = SubscriptionStatus.TRIAL.value
+            period_end = trial_ends_at
+
+        subscription = VendorSubscription(
+            vendor_id=vendor_id,
+            tier=data.tier,
+            status=status,
+            period_start=now,
+            period_end=period_end,
+            trial_ends_at=trial_ends_at,
+            is_annual=data.is_annual,
+        )
+
+        db.add(subscription)
+        db.commit()
+        db.refresh(subscription)
+
+        logger.info(f"Created subscription for vendor {vendor_id}: {data.tier}")
+        return subscription
+
+    def update_subscription(
+        self,
+        db: Session,
+        vendor_id: int,
+        data: SubscriptionUpdate,
+    ) -> VendorSubscription:
+        """Update a vendor subscription."""
+        subscription = self.get_subscription_or_raise(db, vendor_id)
+
+        update_data = data.model_dump(exclude_unset=True)
+        for key, value in update_data.items():
+            setattr(subscription, key, value)
+
+        subscription.updated_at = datetime.now(UTC)
+        db.commit()
+        db.refresh(subscription)
+
+        logger.info(f"Updated subscription for vendor {vendor_id}")
+        return subscription
+
+    def upgrade_tier(
+        self,
+        db: Session,
+        vendor_id: int,
+        new_tier: str,
+    ) -> VendorSubscription:
+        """Upgrade vendor to a new tier."""
+        subscription = self.get_subscription_or_raise(db, vendor_id)
+
+        old_tier = subscription.tier
+        subscription.tier = new_tier
+        subscription.updated_at = datetime.now(UTC)
+
+        # If upgrading from trial, mark as active
+        if subscription.status == SubscriptionStatus.TRIAL.value:
+            subscription.status = SubscriptionStatus.ACTIVE.value
+
+        db.commit()
+        db.refresh(subscription)
+
+        logger.info(f"Upgraded vendor {vendor_id} from {old_tier} to {new_tier}")
+        return subscription
+
+    def cancel_subscription(
+        self,
+        db: Session,
+        vendor_id: int,
+        reason: str | None = None,
+    ) -> VendorSubscription:
+        """Cancel a vendor subscription (access until period end)."""
+        subscription = self.get_subscription_or_raise(db, vendor_id)
+
+        subscription.status = SubscriptionStatus.CANCELLED.value
+        subscription.cancelled_at = datetime.now(UTC)
+        subscription.cancellation_reason = reason
+        subscription.updated_at = datetime.now(UTC)
+
+        db.commit()
+        db.refresh(subscription)
+
+        logger.info(f"Cancelled subscription for vendor {vendor_id}")
+        return subscription
+
+    # =========================================================================
+    # Usage Tracking
+    # =========================================================================
+
+    def get_usage(self, db: Session, vendor_id: int) -> SubscriptionUsage:
+        """Get current subscription usage statistics."""
+        subscription = self.get_or_create_subscription(db, vendor_id)
+
+        # Get actual counts
+        products_count = (
+            db.query(func.count(Product.id))
+            .filter(Product.vendor_id == vendor_id)
+            .scalar()
+            or 0
+        )
+
+        team_count = (
+            db.query(func.count(VendorUser.id))
+            .filter(VendorUser.vendor_id == vendor_id, VendorUser.is_active == True)
+            .scalar()
+            or 0
+        )
+
+        # Calculate usage stats
+        orders_limit = subscription.orders_limit
+        products_limit = subscription.products_limit
+        team_limit = subscription.team_members_limit
+
+        def calc_remaining(current: int, limit: int | None) -> int | None:
+            if limit is None:
+                return None
+            return max(0, limit - current)
+
+        def calc_percent(current: int, limit: int | None) -> float | None:
+            if limit is None or limit == 0:
+                return None
+            return min(100.0, (current / limit) * 100)
+
+        return SubscriptionUsage(
+            orders_used=subscription.orders_this_period,
+            orders_limit=orders_limit,
+            orders_remaining=calc_remaining(subscription.orders_this_period, orders_limit),
+            orders_percent_used=calc_percent(subscription.orders_this_period, orders_limit),
+            products_used=products_count,
+            products_limit=products_limit,
+            products_remaining=calc_remaining(products_count, products_limit),
+            products_percent_used=calc_percent(products_count, products_limit),
+            team_members_used=team_count,
+            team_members_limit=team_limit,
+            team_members_remaining=calc_remaining(team_count, team_limit),
+            team_members_percent_used=calc_percent(team_count, team_limit),
+        )
+
+    def increment_order_count(self, db: Session, vendor_id: int) -> None:
+        """
+        Increment the order counter for the current period.
+
+        Call this after successfully creating/importing an order.
+        """
+        subscription = self.get_or_create_subscription(db, vendor_id)
+        subscription.increment_order_count()
+        db.commit()
+
+    def reset_period_counters(self, db: Session, vendor_id: int) -> None:
+        """Reset counters for a new billing period."""
+        subscription = self.get_subscription_or_raise(db, vendor_id)
+        subscription.reset_period_counters()
+        db.commit()
+        logger.info(f"Reset period counters for vendor {vendor_id}")
+
+    # =========================================================================
+    # Limit Checks
+    # =========================================================================
+
+    def can_create_order(
+        self, db: Session, vendor_id: int
+    ) -> tuple[bool, str | None]:
+        """
+        Check if vendor can create/import another order.
+
+        Returns: (allowed, error_message)
+        """
+        subscription = self.get_or_create_subscription(db, vendor_id)
+        return subscription.can_create_order()
+
+    def check_order_limit(self, db: Session, vendor_id: int) -> None:
+        """
+        Check order limit and raise exception if exceeded.
+
+        Use this in order creation flows.
+        """
+        can_create, message = self.can_create_order(db, vendor_id)
+        if not can_create:
+            subscription = self.get_subscription(db, vendor_id)
+            raise TierLimitExceededException(
+                message=message or "Order limit exceeded",
+                limit_type="orders",
+                current=subscription.orders_this_period if subscription else 0,
+                limit=subscription.orders_limit if subscription else 0,
+            )
+
+    def can_add_product(
+        self, db: Session, vendor_id: int
+    ) -> tuple[bool, str | None]:
+        """
+        Check if vendor can add another product.
+
+        Returns: (allowed, error_message)
+        """
+        subscription = self.get_or_create_subscription(db, vendor_id)
+
+        products_count = (
+            db.query(func.count(Product.id))
+            .filter(Product.vendor_id == vendor_id)
+            .scalar()
+            or 0
+        )
+
+        return subscription.can_add_product(products_count)
+
+    def check_product_limit(self, db: Session, vendor_id: int) -> None:
+        """
+        Check product limit and raise exception if exceeded.
+
+        Use this in product creation flows.
+        """
+        can_add, message = self.can_add_product(db, vendor_id)
+        if not can_add:
+            subscription = self.get_subscription(db, vendor_id)
+            products_count = (
+                db.query(func.count(Product.id))
+                .filter(Product.vendor_id == vendor_id)
+                .scalar()
+                or 0
+            )
+            raise TierLimitExceededException(
+                message=message or "Product limit exceeded",
+                limit_type="products",
+                current=products_count,
+                limit=subscription.products_limit if subscription else 0,
+            )
+
+    def can_add_team_member(
+        self, db: Session, vendor_id: int
+    ) -> tuple[bool, str | None]:
+        """
+        Check if vendor can add another team member.
+
+        Returns: (allowed, error_message)
+        """
+        subscription = self.get_or_create_subscription(db, vendor_id)
+
+        team_count = (
+            db.query(func.count(VendorUser.id))
+            .filter(VendorUser.vendor_id == vendor_id, VendorUser.is_active == True)
+            .scalar()
+            or 0
+        )
+
+        return subscription.can_add_team_member(team_count)
+
+    def check_team_limit(self, db: Session, vendor_id: int) -> None:
+        """
+        Check team member limit and raise exception if exceeded.
+
+        Use this in team member invitation flows.
+        """
+        can_add, message = self.can_add_team_member(db, vendor_id)
+        if not can_add:
+            subscription = self.get_subscription(db, vendor_id)
+            team_count = (
+                db.query(func.count(VendorUser.id))
+                .filter(VendorUser.vendor_id == vendor_id, VendorUser.is_active == True)
+                .scalar()
+                or 0
+            )
+            raise TierLimitExceededException(
+                message=message or "Team member limit exceeded",
+                limit_type="team_members",
+                current=team_count,
+                limit=subscription.team_members_limit if subscription else 0,
+            )
+
+    # =========================================================================
+    # Feature Gating
+    # =========================================================================
+
+    def has_feature(self, db: Session, vendor_id: int, feature: str) -> bool:
+        """Check if vendor has access to a feature."""
+        subscription = self.get_or_create_subscription(db, vendor_id)
+        return subscription.has_feature(feature)
+
+    def check_feature(self, db: Session, vendor_id: int, feature: str) -> None:
+        """
+        Check feature access and raise exception if not available.
+
+        Use this to gate premium features.
+        """
+        if not self.has_feature(db, vendor_id, feature):
+            subscription = self.get_or_create_subscription(db, vendor_id)
+
+            # Find which tier has this feature
+            required_tier = None
+            for tier_code, limits in TIER_LIMITS.items():
+                if feature in limits.get("features", []):
+                    required_tier = limits["name"]
+                    break
+
+            raise FeatureNotAvailableException(
+                feature=feature,
+                current_tier=subscription.tier,
+                required_tier=required_tier or "higher",
+            )
+
+    def get_feature_tier(self, feature: str) -> str | None:
+        """Get the minimum tier required for a feature."""
+        for tier_code in [
+            TierCode.ESSENTIAL,
+            TierCode.PROFESSIONAL,
+            TierCode.BUSINESS,
+            TierCode.ENTERPRISE,
+        ]:
+            if feature in TIER_LIMITS[tier_code].get("features", []):
+                return tier_code.value
+        return None
+
+
+# Singleton instance
+subscription_service = SubscriptionService()
--- a/app/templates/invoices/invoice.html
+++ b/app/templates/invoices/invoice.html
@@ -0,0 +1,470 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Invoice {{ invoice.invoice_number }}</title>
+    <style>
+        /* Reset and base styles */
+        * {
+            margin: 0;
+            padding: 0;
+            box-sizing: border-box;
+        }
+
+        body {
+            font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+            font-size: 10pt;
+            line-height: 1.4;
+            color: #333;
+            background: #fff;
+        }
+
+        /* Page setup for A4 */
+        @page {
+            size: A4;
+            margin: 20mm 15mm 20mm 15mm;
+        }
+
+        .invoice-container {
+            max-width: 100%;
+            padding: 0;
+        }
+
+        /* Header */
+        .header {
+            display: flex;
+            justify-content: space-between;
+            margin-bottom: 30px;
+            padding-bottom: 20px;
+            border-bottom: 2px solid #2563eb;
+        }
+
+        .company-info {
+            max-width: 50%;
+        }
+
+        .company-name {
+            font-size: 18pt;
+            font-weight: bold;
+            color: #1e40af;
+            margin-bottom: 8px;
+        }
+
+        .company-details {
+            font-size: 9pt;
+            color: #666;
+            line-height: 1.5;
+        }
+
+        .invoice-title {
+            text-align: right;
+        }
+
+        .invoice-title h1 {
+            font-size: 24pt;
+            color: #1e40af;
+            margin-bottom: 10px;
+        }
+
+        .invoice-meta {
+            font-size: 10pt;
+            color: #666;
+        }
+
+        .invoice-meta strong {
+            color: #333;
+        }
+
+        /* Addresses section */
+        .addresses {
+            display: flex;
+            justify-content: space-between;
+            margin-bottom: 30px;
+            gap: 40px;
+        }
+
+        .address-block {
+            flex: 1;
+        }
+
+        .address-label {
+            font-size: 8pt;
+            text-transform: uppercase;
+            letter-spacing: 1px;
+            color: #888;
+            margin-bottom: 8px;
+            font-weight: 600;
+        }
+
+        .address-content {
+            background: #f8fafc;
+            padding: 15px;
+            border-radius: 6px;
+            border-left: 3px solid #2563eb;
+        }
+
+        .address-name {
+            font-weight: bold;
+            font-size: 11pt;
+            margin-bottom: 5px;
+        }
+
+        .address-details {
+            font-size: 9pt;
+            color: #555;
+            line-height: 1.6;
+        }
+
+        /* VAT info badge */
+        .vat-badge {
+            display: inline-block;
+            background: #dbeafe;
+            color: #1e40af;
+            padding: 3px 8px;
+            border-radius: 4px;
+            font-size: 8pt;
+            margin-top: 8px;
+        }
+
+        /* Items table */
+        .items-table {
+            width: 100%;
+            border-collapse: collapse;
+            margin-bottom: 30px;
+        }
+
+        .items-table thead {
+            background: #1e40af;
+            color: #fff;
+        }
+
+        .items-table th {
+            padding: 12px 10px;
+            text-align: left;
+            font-size: 9pt;
+            font-weight: 600;
+            text-transform: uppercase;
+            letter-spacing: 0.5px;
+        }
+
+        .items-table th.number {
+            text-align: right;
+        }
+
+        .items-table td {
+            padding: 12px 10px;
+            border-bottom: 1px solid #e5e7eb;
+            font-size: 9pt;
+        }
+
+        .items-table td.number {
+            text-align: right;
+            font-family: 'Courier New', monospace;
+        }
+
+        .items-table tbody tr:hover {
+            background: #f8fafc;
+        }
+
+        .item-sku {
+            color: #888;
+            font-size: 8pt;
+            display: block;
+            margin-top: 2px;
+        }
+
+        /* Totals */
+        .totals-section {
+            display: flex;
+            justify-content: flex-end;
+            margin-bottom: 30px;
+        }
+
+        .totals-table {
+            width: 280px;
+        }
+
+        .totals-row {
+            display: flex;
+            justify-content: space-between;
+            padding: 8px 0;
+            border-bottom: 1px solid #e5e7eb;
+        }
+
+        .totals-row.total {
+            border-bottom: none;
+            border-top: 2px solid #1e40af;
+            margin-top: 5px;
+            padding-top: 12px;
+        }
+
+        .totals-label {
+            color: #666;
+            font-size: 9pt;
+        }
+
+        .totals-value {
+            font-family: 'Courier New', monospace;
+            font-size: 10pt;
+        }
+
+        .totals-row.total .totals-label,
+        .totals-row.total .totals-value {
+            font-weight: bold;
+            font-size: 12pt;
+            color: #1e40af;
+        }
+
+        /* VAT regime note */
+        .vat-note {
+            background: #fef3c7;
+            border: 1px solid #f59e0b;
+            border-radius: 6px;
+            padding: 10px 15px;
+            font-size: 8pt;
+            color: #92400e;
+            margin-bottom: 20px;
+        }
+
+        /* Payment info */
+        .payment-section {
+            background: #f0fdf4;
+            border: 1px solid #22c55e;
+            border-radius: 6px;
+            padding: 15px;
+            margin-bottom: 20px;
+        }
+
+        .payment-title {
+            font-weight: bold;
+            color: #166534;
+            margin-bottom: 10px;
+            font-size: 10pt;
+        }
+
+        .payment-details {
+            font-size: 9pt;
+            color: #333;
+        }
+
+        .payment-details .label {
+            color: #666;
+            display: inline-block;
+            width: 60px;
+        }
+
+        /* Footer */
+        .footer {
+            margin-top: 40px;
+            padding-top: 20px;
+            border-top: 1px solid #e5e7eb;
+            font-size: 8pt;
+            color: #888;
+            text-align: center;
+        }
+
+        .footer p {
+            margin-bottom: 5px;
+        }
+
+        /* Status badge */
+        .status-badge {
+            display: inline-block;
+            padding: 4px 12px;
+            border-radius: 20px;
+            font-size: 9pt;
+            font-weight: 600;
+            text-transform: uppercase;
+            letter-spacing: 0.5px;
+        }
+
+        .status-draft {
+            background: #fef3c7;
+            color: #92400e;
+        }
+
+        .status-issued {
+            background: #dbeafe;
+            color: #1e40af;
+        }
+
+        .status-paid {
+            background: #dcfce7;
+            color: #166534;
+        }
+
+        .status-cancelled {
+            background: #fee2e2;
+            color: #991b1b;
+        }
+
+        /* Print styles */
+        @media print {
+            body {
+                -webkit-print-color-adjust: exact;
+                print-color-adjust: exact;
+            }
+        }
+    </style>
+</head>
+<body>
+    <div class="invoice-container">
+        <!-- Header -->
+        <div class="header">
+            <div class="company-info">
+                <div class="company-name">{{ seller.company_name }}</div>
+                <div class="company-details">
+                    {% if seller.address %}{{ seller.address }}<br>{% endif %}
+                    {% if seller.postal_code or seller.city %}
+                        {{ seller.postal_code }} {{ seller.city }}<br>
+                    {% endif %}
+                    {{ seller.country }}
+                    {% if seller.vat_number %}
+                        <br>VAT: {{ seller.vat_number }}
+                    {% endif %}
+                </div>
+            </div>
+            <div class="invoice-title">
+                <h1>INVOICE</h1>
+                <div class="invoice-meta">
+                    <strong>{{ invoice.invoice_number }}</strong><br>
+                    Date: {{ invoice.invoice_date.strftime('%d/%m/%Y') }}<br>
+                    <span class="status-badge status-{{ invoice.status }}">{{ invoice.status }}</span>
+                </div>
+            </div>
+        </div>
+
+        <!-- Addresses -->
+        <div class="addresses">
+            <div class="address-block">
+                <div class="address-label">Bill To</div>
+                <div class="address-content">
+                    <div class="address-name">{{ buyer.name }}</div>
+                    <div class="address-details">
+                        {% if buyer.get('company') %}{{ buyer.company }}<br>{% endif %}
+                        {% if buyer.address %}{{ buyer.address }}<br>{% endif %}
+                        {% if buyer.postal_code or buyer.city %}
+                            {{ buyer.postal_code }} {{ buyer.city }}<br>
+                        {% endif %}
+                        {{ buyer.country }}
+                        {% if buyer.email %}<br>{{ buyer.email }}{% endif %}
+                    </div>
+                    {% if buyer.vat_number %}
+                        <div class="vat-badge">VAT: {{ buyer.vat_number }}</div>
+                    {% endif %}
+                </div>
+            </div>
+            {% if invoice.order_id %}
+            <div class="address-block">
+                <div class="address-label">Order Reference</div>
+                <div class="address-content">
+                    <div class="address-details">
+                        Order #{{ invoice.order_id }}<br>
+                        Currency: {{ invoice.currency }}
+                    </div>
+                </div>
+            </div>
+            {% endif %}
+        </div>
+
+        <!-- VAT Regime Note -->
+        {% if invoice.vat_regime == 'reverse_charge' %}
+        <div class="vat-note">
+            <strong>Reverse Charge:</strong> VAT to be accounted for by the recipient pursuant to Article 196 of Council Directive 2006/112/EC.
+        </div>
+        {% elif invoice.vat_regime == 'oss' %}
+        <div class="vat-note">
+            <strong>OSS Invoice:</strong> VAT charged at {{ invoice.vat_rate }}% ({{ invoice.destination_country }} rate) under One-Stop-Shop scheme.
+        </div>
+        {% elif invoice.vat_regime == 'exempt' %}
+        <div class="vat-note">
+            <strong>VAT Exempt:</strong> Export outside EU - VAT not applicable.
+        </div>
+        {% endif %}
+
+        <!-- Items Table -->
+        <table class="items-table">
+            <thead>
+                <tr>
+                    <th style="width: 50%">Description</th>
+                    <th class="number" style="width: 10%">Qty</th>
+                    <th class="number" style="width: 20%">Unit Price</th>
+                    <th class="number" style="width: 20%">Total</th>
+                </tr>
+            </thead>
+            <tbody>
+                {% for item in line_items %}
+                <tr>
+                    <td>
+                        {{ item.description }}
+                        {% if item.sku or item.ean %}
+                        <span class="item-sku">
+                            {% if item.sku %}SKU: {{ item.sku }}{% endif %}
+                            {% if item.sku and item.ean %} | {% endif %}
+                            {% if item.ean %}EAN: {{ item.ean }}{% endif %}
+                        </span>
+                        {% endif %}
+                    </td>
+                    <td class="number">{{ item.quantity }}</td>
+                    <td class="number">{{ "%.2f"|format(item.unit_price_cents / 100) }} {{ invoice.currency }}</td>
+                    <td class="number">{{ "%.2f"|format(item.total_cents / 100) }} {{ invoice.currency }}</td>
+                </tr>
+                {% endfor %}
+            </tbody>
+        </table>
+
+        <!-- Totals -->
+        <div class="totals-section">
+            <div class="totals-table">
+                <div class="totals-row">
+                    <span class="totals-label">Subtotal</span>
+                    <span class="totals-value">{{ "%.2f"|format(invoice.subtotal_cents / 100) }} {{ invoice.currency }}</span>
+                </div>
+                <div class="totals-row">
+                    <span class="totals-label">
+                        VAT ({{ invoice.vat_rate }}%)
+                        {% if invoice.vat_rate_label %}<br><small>{{ invoice.vat_rate_label }}</small>{% endif %}
+                    </span>
+                    <span class="totals-value">{{ "%.2f"|format(invoice.vat_amount_cents / 100) }} {{ invoice.currency }}</span>
+                </div>
+                <div class="totals-row total">
+                    <span class="totals-label">Total</span>
+                    <span class="totals-value">{{ "%.2f"|format(invoice.total_cents / 100) }} {{ invoice.currency }}</span>
+                </div>
+            </div>
+        </div>
+
+        <!-- Payment Information -->
+        {% if bank_details or payment_terms %}
+        <div class="payment-section">
+            <div class="payment-title">Payment Information</div>
+            <div class="payment-details">
+                {% if payment_terms %}
+                <p style="margin-bottom: 10px;">{{ payment_terms }}</p>
+                {% endif %}
+                {% if bank_details %}
+                    {% if bank_details.bank_name %}
+                    <span class="label">Bank:</span> {{ bank_details.bank_name }}<br>
+                    {% endif %}
+                    {% if bank_details.iban %}
+                    <span class="label">IBAN:</span> {{ bank_details.iban }}<br>
+                    {% endif %}
+                    {% if bank_details.bic %}
+                    <span class="label">BIC:</span> {{ bank_details.bic }}
+                    {% endif %}
+                {% endif %}
+            </div>
+        </div>
+        {% endif %}
+
+        <!-- Footer -->
+        <div class="footer">
+            {% if footer_text %}
+            <p>{{ footer_text }}</p>
+            {% endif %}
+            <p>Invoice {{ invoice.invoice_number }} | Generated on {{ now.strftime('%d/%m/%Y %H:%M') }}</p>
+        </div>
+    </div>
+</body>
+</html>
--- a/app/templates/platform/homepage-modern.html
+++ b/app/templates/platform/homepage-modern.html
@@ -1,112 +1,127 @@
 {# app/templates/platform/homepage-modern.html #}
-{# Modern/trendy platform homepage template with animations #}
+{# Wizamart OMS - Luxembourg-focused homepage inspired by Veeqo #}
 {% extends "platform/base.html" %}

 {% block title %}
-    {% if page %}{{ page.title }}{% else %}Home{% endif %} - Marketplace
+    Wizamart - The Back-Office for Letzshop Sellers
 {% endblock %}

 {% block extra_head %}
 <style>
+    .gradient-lu {
+        background: linear-gradient(135deg, #00A1DE 0%, #EF3340 100%);
+    }
+    .gradient-lu-subtle {
+        background: linear-gradient(135deg, #f0f9ff 0%, #fef2f2 100%);
+    }
    @keyframes float {
        0%, 100% { transform: translateY(0px); }
-        50% { transform: translateY(-20px); }
+        50% { transform: translateY(-10px); }
    }
-
    .float-animation {
-        animation: float 6s ease-in-out infinite;
+        animation: float 4s ease-in-out infinite;
    }
-
-    @keyframes gradient {
-        0% { background-position: 0% 50%; }
-        50% { background-position: 100% 50%; }
-        100% { background-position: 0% 50%; }
-    }
-
-    .animated-gradient {
-        background: linear-gradient(270deg, #6366f1, #8b5cf6, #ec4899, #f43f5e);
-        background-size: 400% 400%;
-        animation: gradient 15s ease infinite;
+    .feature-card:hover {
+        transform: translateY(-4px);
+        box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    }
 </style>
 {% endblock %}

 {% block content %}
 <!-- ═══════════════════════════════════════════════════════════════ -->
-<!-- MODERN HERO WITH GRADIENT                                        -->
+<!-- HERO - The Back-Office Letzshop Doesn't Give You                -->
 <!-- ═══════════════════════════════════════════════════════════════ -->
-<section class="relative overflow-hidden animated-gradient text-white py-24 md:py-32">
-    {# Decorative elements #}
-    <div class="absolute top-0 right-0 w-1/3 h-full opacity-20">
-        <div class="absolute top-20 right-20 w-72 h-72 rounded-full bg-white blur-3xl"></div>
-        <div class="absolute bottom-20 right-40 w-96 h-96 rounded-full bg-white blur-3xl"></div>
+<section class="relative overflow-hidden bg-gray-900 text-white py-20 md:py-28">
+    {# Background pattern #}
+    <div class="absolute inset-0 opacity-10">
+        <div class="absolute top-0 left-0 w-full h-full" style="background-image: url('data:image/svg+xml,%3Csvg width=\"60\" height=\"60\" viewBox=\"0 0 60 60\" xmlns=\"http://www.w3.org/2000/svg\"%3E%3Cg fill=\"none\" fill-rule=\"evenodd\"%3E%3Cg fill=\"%23ffffff\" fill-opacity=\"0.4\"%3E%3Cpath d=\"M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z\"/%3E%3C/g%3E%3C/g%3E%3C/svg%3E');"></div>
    </div>

    <div class="relative max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
        <div class="grid grid-cols-1 lg:grid-cols-2 gap-12 items-center">
            {# Left column - Content #}
            <div>
-                {% if page %}
-                    <h1 class="text-5xl md:text-7xl font-black mb-6 leading-tight">
-                        {{ page.title }}
-                    </h1>
-                    <div class="text-xl md:text-2xl mb-8 opacity-95">
-                        {{ page.content | safe }}
-                    </div>
-                {% else %}
-                    <div class="inline-block px-4 py-2 bg-white/20 backdrop-blur-sm rounded-full text-sm font-semibold mb-6">
-                        ✨ The Future of E-Commerce
-                    </div>
-                    <h1 class="text-5xl md:text-7xl font-black mb-6 leading-tight">
-                        Build Your<br>
-                        <span class="text-transparent bg-clip-text bg-white">
-                            Dream Store
-                        </span>
-                    </h1>
-                    <p class="text-xl md:text-2xl mb-8 opacity-95">
-                        Launch a stunning online marketplace in minutes. No coding required. Scale effortlessly.
-                    </p>
-                {% endif %}
+                <div class="inline-flex items-center px-4 py-2 bg-blue-500/20 backdrop-blur-sm rounded-full text-sm font-medium mb-6 border border-blue-400/30">
+                    <span class="mr-2">🇱🇺</span> Built for Luxembourg E-Commerce
+                </div>

-                <div class="flex flex-col sm:flex-row gap-4">
+                <h1 class="text-4xl md:text-5xl lg:text-6xl font-bold mb-6 leading-tight">
+                    The Back-Office<br>
+                    <span class="text-transparent bg-clip-text bg-gradient-to-r from-blue-400 to-cyan-400">
+                        Letzshop Doesn't Give You
+                    </span>
+                </h1>
+
+                <p class="text-xl md:text-2xl text-gray-300 mb-8 leading-relaxed">
+                    Sync orders, manage inventory, generate invoices with correct VAT, and own your customer data. All in one place.
+                </p>
+
+                <div class="flex flex-col sm:flex-row gap-4 mb-8">
                    <a href="/contact"
-                       class="inline-flex items-center justify-center bg-white text-gray-900 px-8 py-4 rounded-xl font-bold hover:shadow-2xl transform hover:scale-105 transition-all duration-200">
-                        <span>Start Free Trial</span>
+                       class="inline-flex items-center justify-center bg-blue-500 hover:bg-blue-600 text-white px-8 py-4 rounded-xl font-bold transition-all duration-200 shadow-lg hover:shadow-xl">
+                        <span>Start 14-Day Free Trial</span>
                        <svg class="w-5 h-5 ml-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13 7l5 5m0 0l-5 5m5-5H6"></path>
                        </svg>
                    </a>
-                    <a href="#features"
-                       class="inline-flex items-center justify-center border-2 border-white text-white px-8 py-4 rounded-xl font-bold hover:bg-white/10 backdrop-blur-sm transition-all duration-200">
-                        Learn More
+                    <a href="#how-it-works"
+                       class="inline-flex items-center justify-center border-2 border-gray-600 text-white px-8 py-4 rounded-xl font-bold hover:bg-white/10 transition-all duration-200">
+                        See How It Works
                    </a>
                </div>

-                {# Stats #}
-                <div class="grid grid-cols-3 gap-6 mt-12 pt-12 border-t border-white/20">
-                    <div>
-                        <div class="text-3xl font-bold mb-1">10K+</div>
-                        <div class="text-sm opacity-80">Active Vendors</div>
-                    </div>
-                    <div>
-                        <div class="text-3xl font-bold mb-1">50M+</div>
-                        <div class="text-sm opacity-80">Products Sold</div>
-                    </div>
-                    <div>
-                        <div class="text-3xl font-bold mb-1">99.9%</div>
-                        <div class="text-sm opacity-80">Uptime</div>
-                    </div>
-                </div>
+                <p class="text-sm text-gray-400">
+                    No credit card required. Setup in 5 minutes. Cancel anytime.
+                </p>
            </div>

-            {# Right column - Visual element #}
-            <div class="hidden lg:block float-animation">
-                <div class="relative">
-                    <div class="w-full h-96 bg-white/10 backdrop-blur-xl rounded-3xl shadow-2xl p-8">
-                        <div class="w-full h-full bg-gradient-to-br from-white/20 to-transparent rounded-2xl flex items-center justify-center">
-                            <div class="text-center">
-                                <div class="text-8xl mb-4">🚀</div>
-                                <div class="text-2xl font-bold">Launch Today</div>
+            {# Right column - Dashboard Preview #}
+            <div class="hidden lg:block">
+                <div class="relative float-animation">
+                    <div class="bg-gray-800 rounded-2xl shadow-2xl border border-gray-700 overflow-hidden">
+                        {# Mock dashboard header #}
+                        <div class="bg-gray-900 px-4 py-3 flex items-center gap-2 border-b border-gray-700">
+                            <div class="w-3 h-3 rounded-full bg-red-500"></div>
+                            <div class="w-3 h-3 rounded-full bg-yellow-500"></div>
+                            <div class="w-3 h-3 rounded-full bg-green-500"></div>
+                            <span class="ml-4 text-gray-400 text-sm">Wizamart Dashboard</span>
+                        </div>
+                        {# Mock dashboard content #}
+                        <div class="p-6 space-y-4">
+                            <div class="grid grid-cols-3 gap-4">
+                                <div class="bg-gray-700/50 rounded-lg p-4">
+                                    <div class="text-gray-400 text-xs mb-1">Today's Orders</div>
+                                    <div class="text-2xl font-bold text-white">24</div>
+                                    <div class="text-green-400 text-xs">+12% vs yesterday</div>
+                                </div>
+                                <div class="bg-gray-700/50 rounded-lg p-4">
+                                    <div class="text-gray-400 text-xs mb-1">Revenue</div>
+                                    <div class="text-2xl font-bold text-white">EUR 1,847</div>
+                                    <div class="text-green-400 text-xs">+8% vs yesterday</div>
+                                </div>
+                                <div class="bg-gray-700/50 rounded-lg p-4">
+                                    <div class="text-gray-400 text-xs mb-1">Low Stock</div>
+                                    <div class="text-2xl font-bold text-yellow-400">3</div>
+                                    <div class="text-gray-400 text-xs">items need restock</div>
+                                </div>
+                            </div>
+                            <div class="bg-gray-700/50 rounded-lg p-4">
+                                <div class="text-gray-400 text-xs mb-3">Recent Orders from Letzshop</div>
+                                <div class="space-y-2">
+                                    <div class="flex justify-between items-center text-sm">
+                                        <span class="text-white">#LS-4521</span>
+                                        <span class="text-gray-400">Marie D.</span>
+                                        <span class="text-green-400">EUR 89.00</span>
+                                        <span class="bg-blue-500/20 text-blue-400 px-2 py-0.5 rounded text-xs">Confirmed</span>
+                                    </div>
+                                    <div class="flex justify-between items-center text-sm">
+                                        <span class="text-white">#LS-4520</span>
+                                        <span class="text-gray-400">Jean M.</span>
+                                        <span class="text-green-400">EUR 156.50</span>
+                                        <span class="bg-purple-500/20 text-purple-400 px-2 py-0.5 rounded text-xs">Shipped</span>
+                                    </div>
+                                </div>
                            </div>
                        </div>
                    </div>
@@ -117,141 +132,466 @@
 </section>

 <!-- ═══════════════════════════════════════════════════════════════ -->
-<!-- FEATURES WITH CARDS                                              -->
+<!-- INTEGRATION BADGE - Works with Letzshop                         -->
 <!-- ═══════════════════════════════════════════════════════════════ -->
-<section id="features" class="py-24 bg-gray-50 dark:bg-gray-900">
+<section class="py-8 bg-gray-50 dark:bg-gray-800 border-y border-gray-200 dark:border-gray-700">
+    <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
+        <div class="flex flex-col md:flex-row items-center justify-center gap-6 md:gap-12">
+            <span class="text-gray-500 dark:text-gray-400 font-medium">Official Integration</span>
+            <div class="flex items-center gap-3 bg-white dark:bg-gray-700 px-6 py-3 rounded-xl shadow-sm">
+                <span class="text-2xl">🛒</span>
+                <span class="font-bold text-gray-900 dark:text-white">Letzshop.lu</span>
+            </div>
+            <span class="text-gray-500 dark:text-gray-400 text-sm">Connect in 2 minutes</span>
+        </div>
+    </div>
+</section>
+
+<!-- ═══════════════════════════════════════════════════════════════ -->
+<!-- THE PROBLEM - Pain Points                                        -->
+<!-- ═══════════════════════════════════════════════════════════════ -->
+<section class="py-20 bg-white dark:bg-gray-900">
    <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
        <div class="text-center mb-16">
-            <div class="inline-block px-4 py-2 bg-purple-100 dark:bg-purple-900/30 text-purple-600 dark:text-purple-400 rounded-full text-sm font-semibold mb-4">
-                ✨ Features
-            </div>
-            <h2 class="text-4xl md:text-5xl font-bold text-gray-900 dark:text-white mb-4">
-                Everything You Need
+            <h2 class="text-3xl md:text-4xl font-bold text-gray-900 dark:text-white mb-4">
+                Sound Familiar?
            </h2>
            <p class="text-xl text-gray-600 dark:text-gray-400 max-w-2xl mx-auto">
-                Powerful features to help you succeed in the digital marketplace
+                These are the daily frustrations of Letzshop sellers
+            </p>
+        </div>
+
+        <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6">
+            <div class="bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 rounded-xl p-6">
+                <div class="text-3xl mb-4">📋</div>
+                <h3 class="font-bold text-gray-900 dark:text-white mb-2">Manual Order Entry</h3>
+                <p class="text-gray-600 dark:text-gray-400 text-sm">Copy-pasting orders from Letzshop to spreadsheets. Every. Single. Day.</p>
+            </div>
+
+            <div class="bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 rounded-xl p-6">
+                <div class="text-3xl mb-4">📦</div>
+                <h3 class="font-bold text-gray-900 dark:text-white mb-2">Inventory Chaos</h3>
+                <p class="text-gray-600 dark:text-gray-400 text-sm">Stock in Letzshop doesn't match reality. Overselling happens.</p>
+            </div>
+
+            <div class="bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 rounded-xl p-6">
+                <div class="text-3xl mb-4">🧾</div>
+                <h3 class="font-bold text-gray-900 dark:text-white mb-2">Wrong VAT Invoices</h3>
+                <p class="text-gray-600 dark:text-gray-400 text-sm">EU customers need correct VAT. Your accountant keeps complaining.</p>
+            </div>
+
+            <div class="bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 rounded-xl p-6">
+                <div class="text-3xl mb-4">👥</div>
+                <h3 class="font-bold text-gray-900 dark:text-white mb-2">Lost Customers</h3>
+                <p class="text-gray-600 dark:text-gray-400 text-sm">Letzshop owns your customer data. You can't retarget or build loyalty.</p>
+            </div>
+        </div>
+    </div>
+</section>
+
+<!-- ═══════════════════════════════════════════════════════════════ -->
+<!-- HOW IT WORKS - 4-Step Workflow (Veeqo-style)                    -->
+<!-- ═══════════════════════════════════════════════════════════════ -->
+<section id="how-it-works" class="py-20 gradient-lu-subtle dark:bg-gray-800">
+    <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
+        <div class="text-center mb-16">
+            <div class="inline-block px-4 py-2 bg-blue-100 dark:bg-blue-900/30 text-blue-600 dark:text-blue-400 rounded-full text-sm font-semibold mb-4">
+                How It Works
+            </div>
+            <h2 class="text-3xl md:text-4xl font-bold text-gray-900 dark:text-white mb-4">
+                From Chaos to Control in 4 Steps
+            </h2>
+        </div>
+
+        <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-8">
+            {# Step 1 #}
+            <div class="relative">
+                <div class="bg-white dark:bg-gray-900 rounded-2xl p-8 shadow-lg h-full">
+                    <div class="w-12 h-12 rounded-full bg-blue-500 text-white flex items-center justify-center font-bold text-xl mb-6">1</div>
+                    <h3 class="text-xl font-bold text-gray-900 dark:text-white mb-3">Connect Letzshop</h3>
+                    <p class="text-gray-600 dark:text-gray-400">Enter your Letzshop API credentials. Done in 2 minutes, no technical skills needed.</p>
+                </div>
+                <div class="hidden lg:block absolute top-1/2 -right-4 w-8 h-0.5 bg-blue-300"></div>
+            </div>
+
+            {# Step 2 #}
+            <div class="relative">
+                <div class="bg-white dark:bg-gray-900 rounded-2xl p-8 shadow-lg h-full">
+                    <div class="w-12 h-12 rounded-full bg-blue-500 text-white flex items-center justify-center font-bold text-xl mb-6">2</div>
+                    <h3 class="text-xl font-bold text-gray-900 dark:text-white mb-3">Orders Flow In</h3>
+                    <p class="text-gray-600 dark:text-gray-400">Orders sync automatically. Confirm and add tracking directly from Wizamart.</p>
+                </div>
+                <div class="hidden lg:block absolute top-1/2 -right-4 w-8 h-0.5 bg-blue-300"></div>
+            </div>
+
+            {# Step 3 #}
+            <div class="relative">
+                <div class="bg-white dark:bg-gray-900 rounded-2xl p-8 shadow-lg h-full">
+                    <div class="w-12 h-12 rounded-full bg-blue-500 text-white flex items-center justify-center font-bold text-xl mb-6">3</div>
+                    <h3 class="text-xl font-bold text-gray-900 dark:text-white mb-3">Generate Invoices</h3>
+                    <p class="text-gray-600 dark:text-gray-400">One click to create compliant PDF invoices with correct VAT for any EU country.</p>
+                </div>
+                <div class="hidden lg:block absolute top-1/2 -right-4 w-8 h-0.5 bg-blue-300"></div>
+            </div>
+
+            {# Step 4 #}
+            <div class="relative">
+                <div class="bg-white dark:bg-gray-900 rounded-2xl p-8 shadow-lg h-full">
+                    <div class="w-12 h-12 rounded-full bg-green-500 text-white flex items-center justify-center font-bold text-xl mb-6">4</div>
+                    <h3 class="text-xl font-bold text-gray-900 dark:text-white mb-3">Grow Your Business</h3>
+                    <p class="text-gray-600 dark:text-gray-400">Export customers for marketing. Track inventory. Focus on selling, not spreadsheets.</p>
+                </div>
+            </div>
+        </div>
+    </div>
+</section>
+
+<!-- ═══════════════════════════════════════════════════════════════ -->
+<!-- FEATURES - What You Get                                          -->
+<!-- ═══════════════════════════════════════════════════════════════ -->
+<section id="features" class="py-20 bg-white dark:bg-gray-900">
+    <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
+        <div class="text-center mb-16">
+            <div class="inline-block px-4 py-2 bg-green-100 dark:bg-green-900/30 text-green-600 dark:text-green-400 rounded-full text-sm font-semibold mb-4">
+                Features
+            </div>
+            <h2 class="text-3xl md:text-4xl font-bold text-gray-900 dark:text-white mb-4">
+                Everything a Letzshop Seller Needs
+            </h2>
+            <p class="text-xl text-gray-600 dark:text-gray-400 max-w-2xl mx-auto">
+                The operational tools Letzshop doesn't provide
            </p>
        </div>

        <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-8">
-            {# Feature cards with hover effects #}
-            <div class="group bg-white dark:bg-gray-800 rounded-2xl p-8 shadow-sm hover:shadow-2xl transition-all duration-300 transform hover:-translate-y-2">
-                <div class="w-14 h-14 rounded-2xl bg-gradient-to-br from-purple-500 to-pink-500 flex items-center justify-center mb-6 group-hover:scale-110 transition-transform">
+            {# Feature 1: Order Sync #}
+            <div class="feature-card bg-gray-50 dark:bg-gray-800 rounded-2xl p-8 transition-all duration-300">
+                <div class="w-14 h-14 rounded-2xl bg-blue-500 flex items-center justify-center mb-6">
                    <svg class="w-7 h-7 text-white" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13 10V3L4 14h7v7l9-11h-7z"></path>
+                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15"></path>
                    </svg>
                </div>
-                <h3 class="text-xl font-bold text-gray-900 dark:text-white mb-3">
-                    Blazing Fast
-                </h3>
-                <p class="text-gray-600 dark:text-gray-400">
-                    Optimized for performance with sub-second page loads and instant search results.
-                </p>
+                <h3 class="text-xl font-bold text-gray-900 dark:text-white mb-3">Automatic Order Sync</h3>
+                <p class="text-gray-600 dark:text-gray-400 mb-4">Orders from Letzshop appear instantly. Confirm orders and sync tracking numbers back automatically.</p>
+                <ul class="text-sm text-gray-500 dark:text-gray-400 space-y-1">
+                    <li>Real-time sync</li>
+                    <li>One-click confirmation</li>
+                    <li>Tracking number sync</li>
+                </ul>
            </div>

-            <div class="group bg-white dark:bg-gray-800 rounded-2xl p-8 shadow-sm hover:shadow-2xl transition-all duration-300 transform hover:-translate-y-2">
-                <div class="w-14 h-14 rounded-2xl bg-gradient-to-br from-blue-500 to-cyan-500 flex items-center justify-center mb-6 group-hover:scale-110 transition-transform">
+            {# Feature 2: Inventory #}
+            <div class="feature-card bg-gray-50 dark:bg-gray-800 rounded-2xl p-8 transition-all duration-300">
+                <div class="w-14 h-14 rounded-2xl bg-green-500 flex items-center justify-center mb-6">
                    <svg class="w-7 h-7 text-white" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 15v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2zm10-10V7a4 4 0 00-8 0v4h8z"></path>
+                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M20 7l-8-4-8 4m16 0l-8 4m8-4v10l-8 4m0-10L4 7m8 4v10M4 7v10l8 4"></path>
                    </svg>
                </div>
-                <h3 class="text-xl font-bold text-gray-900 dark:text-white mb-3">
-                    Bank-Level Security
-                </h3>
-                <p class="text-gray-600 dark:text-gray-400">
-                    Enterprise-grade encryption and security measures to protect your business.
-                </p>
+                <h3 class="text-xl font-bold text-gray-900 dark:text-white mb-3">Real Inventory Management</h3>
+                <p class="text-gray-600 dark:text-gray-400 mb-4">One source of truth for all stock. Locations, reservations, and incoming stock tracking.</p>
+                <ul class="text-sm text-gray-500 dark:text-gray-400 space-y-1">
+                    <li>Product locations (bins)</li>
+                    <li>Stock reservations</li>
+                    <li>Low stock alerts</li>
+                </ul>
            </div>

-            <div class="group bg-white dark:bg-gray-800 rounded-2xl p-8 shadow-sm hover:shadow-2xl transition-all duration-300 transform hover:-translate-y-2">
-                <div class="w-14 h-14 rounded-2xl bg-gradient-to-br from-green-500 to-teal-500 flex items-center justify-center mb-6 group-hover:scale-110 transition-transform">
+            {# Feature 3: Invoicing #}
+            <div class="feature-card bg-gray-50 dark:bg-gray-800 rounded-2xl p-8 transition-all duration-300">
+                <div class="w-14 h-14 rounded-2xl bg-purple-500 flex items-center justify-center mb-6">
                    <svg class="w-7 h-7 text-white" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21a4 4 0 01-4-4V5a2 2 0 012-2h4a2 2 0 012 2v12a4 4 0 01-4 4zm0 0h12a2 2 0 002-2v-4a2 2 0 00-2-2h-2.343M11 7.343l1.657-1.657a2 2 0 012.828 0l2.829 2.829a2 2 0 010 2.828l-8.486 8.485M7 17h.01"></path>
+                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z"></path>
                    </svg>
                </div>
-                <h3 class="text-xl font-bold text-gray-900 dark:text-white mb-3">
-                    Fully Customizable
-                </h3>
-                <p class="text-gray-600 dark:text-gray-400">
-                    Brand your store with custom themes, colors, fonts, and layouts.
-                </p>
+                <h3 class="text-xl font-bold text-gray-900 dark:text-white mb-3">Smart VAT Invoicing</h3>
+                <p class="text-gray-600 dark:text-gray-400 mb-4">Generate PDF invoices with correct VAT rates. Luxembourg, EU countries, B2B reverse charge.</p>
+                <ul class="text-sm text-gray-500 dark:text-gray-400 space-y-1">
+                    <li>Luxembourg 17% VAT</li>
+                    <li>EU destination VAT (OSS)</li>
+                    <li>B2B reverse charge</li>
+                </ul>
            </div>

-            <div class="group bg-white dark:bg-gray-800 rounded-2xl p-8 shadow-sm hover:shadow-2xl transition-all duration-300 transform hover:-translate-y-2">
-                <div class="w-14 h-14 rounded-2xl bg-gradient-to-br from-orange-500 to-red-500 flex items-center justify-center mb-6 group-hover:scale-110 transition-transform">
+            {# Feature 4: Customers #}
+            <div class="feature-card bg-gray-50 dark:bg-gray-800 rounded-2xl p-8 transition-all duration-300">
+                <div class="w-14 h-14 rounded-2xl bg-orange-500 flex items-center justify-center mb-6">
                    <svg class="w-7 h-7 text-white" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 19v-6a2 2 0 00-2-2H5a2 2 0 00-2 2v6a2 2 0 002 2h2a2 2 0 002-2zm0 0V9a2 2 0 012-2h2a2 2 0 012 2v10m-6 0a2 2 0 002 2h2a2 2 0 002-2m0 0V5a2 2 0 012-2h2a2 2 0 012 2v14a2 2 0 01-2 2h-2a2 2 0 01-2-2z"></path>
+                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M17 20h5v-2a3 3 0 00-5.356-1.857M17 20H7m10 0v-2c0-.656-.126-1.283-.356-1.857M7 20H2v-2a3 3 0 015.356-1.857M7 20v-2c0-.656.126-1.283.356-1.857m0 0a5.002 5.002 0 019.288 0M15 7a3 3 0 11-6 0 3 3 0 016 0zm6 3a2 2 0 11-4 0 2 2 0 014 0zM7 10a2 2 0 11-4 0 2 2 0 014 0z"></path>
                    </svg>
                </div>
-                <h3 class="text-xl font-bold text-gray-900 dark:text-white mb-3">
-                    Analytics & Insights
-                </h3>
-                <p class="text-gray-600 dark:text-gray-400">
-                    Powerful analytics to track sales, customer behavior, and growth metrics.
-                </p>
+                <h3 class="text-xl font-bold text-gray-900 dark:text-white mb-3">Own Your Customers</h3>
+                <p class="text-gray-600 dark:text-gray-400 mb-4">All customer data in your database. Export to Mailchimp for marketing campaigns.</p>
+                <ul class="text-sm text-gray-500 dark:text-gray-400 space-y-1">
+                    <li>Order history per customer</li>
+                    <li>Lifetime value tracking</li>
+                    <li>CSV export for marketing</li>
+                </ul>
            </div>

-            <div class="group bg-white dark:bg-gray-800 rounded-2xl p-8 shadow-sm hover:shadow-2xl transition-all duration-300 transform hover:-translate-y-2">
-                <div class="w-14 h-14 rounded-2xl bg-gradient-to-br from-indigo-500 to-purple-500 flex items-center justify-center mb-6 group-hover:scale-110 transition-transform">
+            {# Feature 5: Team #}
+            <div class="feature-card bg-gray-50 dark:bg-gray-800 rounded-2xl p-8 transition-all duration-300">
+                <div class="w-14 h-14 rounded-2xl bg-cyan-500 flex items-center justify-center mb-6">
                    <svg class="w-7 h-7 text-white" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 18h.01M8 21h8a2 2 0 002-2V5a2 2 0 00-2-2H8a2 2 0 00-2 2v14a2 2 0 002 2z"></path>
+                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 4.354a4 4 0 110 5.292M15 21H3v-1a6 6 0 0112 0v1zm0 0h6v-1a6 6 0 00-9-5.197M13 7a4 4 0 11-8 0 4 4 0 018 0z"></path>
                    </svg>
                </div>
-                <h3 class="text-xl font-bold text-gray-900 dark:text-white mb-3">
-                    Mobile-First Design
-                </h3>
-                <p class="text-gray-600 dark:text-gray-400">
-                    Beautiful, responsive design that works perfectly on all devices.
-                </p>
+                <h3 class="text-xl font-bold text-gray-900 dark:text-white mb-3">Team Management</h3>
+                <p class="text-gray-600 dark:text-gray-400 mb-4">Invite team members with role-based permissions. Everyone works from one dashboard.</p>
+                <ul class="text-sm text-gray-500 dark:text-gray-400 space-y-1">
+                    <li>Multiple users</li>
+                    <li>Role-based access</li>
+                    <li>Activity logging</li>
+                </ul>
            </div>

-            <div class="group bg-white dark:bg-gray-800 rounded-2xl p-8 shadow-sm hover:shadow-2xl transition-all duration-300 transform hover:-translate-y-2">
-                <div class="w-14 h-14 rounded-2xl bg-gradient-to-br from-pink-500 to-rose-500 flex items-center justify-center mb-6 group-hover:scale-110 transition-transform">
+            {# Feature 6: Purchase Orders #}
+            <div class="feature-card bg-gray-50 dark:bg-gray-800 rounded-2xl p-8 transition-all duration-300">
+                <div class="w-14 h-14 rounded-2xl bg-pink-500 flex items-center justify-center mb-6">
                    <svg class="w-7 h-7 text-white" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M18.364 5.636l-3.536 3.536m0 5.656l3.536 3.536M9.172 9.172L5.636 5.636m3.536 9.192l-3.536 3.536M21 12a9 9 0 11-18 0 9 9 0 0118 0zm-5 0a4 4 0 11-8 0 4 4 0 018 0z"></path>
+                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-3 7h3m-3 4h3m-6-4h.01M9 16h.01"></path>
                    </svg>
                </div>
-                <h3 class="text-xl font-bold text-gray-900 dark:text-white mb-3">
-                    24/7 Support
-                </h3>
-                <p class="text-gray-600 dark:text-gray-400">
-                    Round-the-clock customer support to help you succeed at every step.
-                </p>
+                <h3 class="text-xl font-bold text-gray-900 dark:text-white mb-3">Purchase Orders</h3>
+                <p class="text-gray-600 dark:text-gray-400 mb-4">Track incoming stock from suppliers. Know what's on order and when it arrives.</p>
+                <ul class="text-sm text-gray-500 dark:text-gray-400 space-y-1">
+                    <li>Track supplier orders</li>
+                    <li>Expected arrival dates</li>
+                    <li>Receive and update stock</li>
+                </ul>
            </div>
        </div>
    </div>
 </section>

 <!-- ═══════════════════════════════════════════════════════════════ -->
-<!-- MODERN CTA WITH GRADIENT                                         -->
+<!-- PRICING - 4 Tiers                                                -->
 <!-- ═══════════════════════════════════════════════════════════════ -->
-<section class="py-24 relative overflow-hidden">
-    <div class="absolute inset-0 gradient-accent opacity-90"></div>
+<section id="pricing" class="py-20 bg-gray-50 dark:bg-gray-800">
+    <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
+        <div class="text-center mb-16">
+            <div class="inline-block px-4 py-2 bg-purple-100 dark:bg-purple-900/30 text-purple-600 dark:text-purple-400 rounded-full text-sm font-semibold mb-4">
+                Pricing
+            </div>
+            <h2 class="text-3xl md:text-4xl font-bold text-gray-900 dark:text-white mb-4">
+                Simple, Transparent Pricing
+            </h2>
+            <p class="text-xl text-gray-600 dark:text-gray-400 max-w-2xl mx-auto">
+                No per-order fees. No hidden costs. Flat monthly rate.
+            </p>
+        </div>

-    <div class="relative max-w-4xl mx-auto px-4 sm:px-6 lg:px-8 text-center text-white">
-        <h2 class="text-4xl md:text-5xl font-bold mb-6">
-            Start Your Journey Today
+        <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6">
+            {# Essential #}
+            <div class="bg-white dark:bg-gray-900 rounded-2xl p-8 shadow-sm border border-gray-200 dark:border-gray-700">
+                <h3 class="text-lg font-bold text-gray-900 dark:text-white mb-2">Essential</h3>
+                <p class="text-gray-500 dark:text-gray-400 text-sm mb-4">For solo vendors getting started</p>
+                <div class="mb-6">
+                    <span class="text-4xl font-bold text-gray-900 dark:text-white">EUR 49</span>
+                    <span class="text-gray-500 dark:text-gray-400">/month</span>
+                </div>
+                <ul class="space-y-3 mb-8 text-sm">
+                    <li class="flex items-center text-gray-600 dark:text-gray-400">
+                        <svg class="w-5 h-5 text-green-500 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        100 orders/month
+                    </li>
+                    <li class="flex items-center text-gray-600 dark:text-gray-400">
+                        <svg class="w-5 h-5 text-green-500 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        200 products
+                    </li>
+                    <li class="flex items-center text-gray-600 dark:text-gray-400">
+                        <svg class="w-5 h-5 text-green-500 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        Luxembourg VAT invoices
+                    </li>
+                    <li class="flex items-center text-gray-600 dark:text-gray-400">
+                        <svg class="w-5 h-5 text-green-500 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        1 team member
+                    </li>
+                </ul>
+                <a href="/contact" class="block w-full text-center bg-gray-100 dark:bg-gray-800 text-gray-900 dark:text-white px-6 py-3 rounded-xl font-semibold hover:bg-gray-200 dark:hover:bg-gray-700 transition-colors">
+                    Start Free Trial
+                </a>
+            </div>
+
+            {# Professional - Highlighted #}
+            <div class="bg-blue-600 rounded-2xl p-8 shadow-xl relative transform lg:scale-105">
+                <div class="absolute -top-4 left-1/2 -translate-x-1/2 bg-orange-500 text-white text-xs font-bold px-3 py-1 rounded-full">
+                    MOST POPULAR
+                </div>
+                <h3 class="text-lg font-bold text-white mb-2">Professional</h3>
+                <p class="text-blue-200 text-sm mb-4">For growing multi-channel sellers</p>
+                <div class="mb-6">
+                    <span class="text-4xl font-bold text-white">EUR 99</span>
+                    <span class="text-blue-200">/month</span>
+                </div>
+                <ul class="space-y-3 mb-8 text-sm">
+                    <li class="flex items-center text-blue-100">
+                        <svg class="w-5 h-5 text-green-400 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        500 orders/month
+                    </li>
+                    <li class="flex items-center text-blue-100">
+                        <svg class="w-5 h-5 text-green-400 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        Unlimited products
+                    </li>
+                    <li class="flex items-center text-blue-100">
+                        <svg class="w-5 h-5 text-green-400 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        <strong>EU VAT invoices</strong>
+                    </li>
+                    <li class="flex items-center text-blue-100">
+                        <svg class="w-5 h-5 text-green-400 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        Product locations
+                    </li>
+                    <li class="flex items-center text-blue-100">
+                        <svg class="w-5 h-5 text-green-400 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        Purchase orders
+                    </li>
+                    <li class="flex items-center text-blue-100">
+                        <svg class="w-5 h-5 text-green-400 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        Customer export
+                    </li>
+                    <li class="flex items-center text-blue-100">
+                        <svg class="w-5 h-5 text-green-400 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        3 team members
+                    </li>
+                </ul>
+                <a href="/contact" class="block w-full text-center bg-white text-blue-600 px-6 py-3 rounded-xl font-bold hover:bg-blue-50 transition-colors">
+                    Start Free Trial
+                </a>
+            </div>
+
+            {# Business #}
+            <div class="bg-white dark:bg-gray-900 rounded-2xl p-8 shadow-sm border border-gray-200 dark:border-gray-700">
+                <h3 class="text-lg font-bold text-gray-900 dark:text-white mb-2">Business</h3>
+                <p class="text-gray-500 dark:text-gray-400 text-sm mb-4">For high-volume operations</p>
+                <div class="mb-6">
+                    <span class="text-4xl font-bold text-gray-900 dark:text-white">EUR 199</span>
+                    <span class="text-gray-500 dark:text-gray-400">/month</span>
+                </div>
+                <ul class="space-y-3 mb-8 text-sm">
+                    <li class="flex items-center text-gray-600 dark:text-gray-400">
+                        <svg class="w-5 h-5 text-green-500 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        2,000 orders/month
+                    </li>
+                    <li class="flex items-center text-gray-600 dark:text-gray-400">
+                        <svg class="w-5 h-5 text-green-500 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        Everything in Professional
+                    </li>
+                    <li class="flex items-center text-gray-600 dark:text-gray-400">
+                        <svg class="w-5 h-5 text-green-500 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        <strong>Analytics dashboard</strong>
+                    </li>
+                    <li class="flex items-center text-gray-600 dark:text-gray-400">
+                        <svg class="w-5 h-5 text-green-500 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        <strong>API access</strong>
+                    </li>
+                    <li class="flex items-center text-gray-600 dark:text-gray-400">
+                        <svg class="w-5 h-5 text-green-500 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        Accounting export
+                    </li>
+                    <li class="flex items-center text-gray-600 dark:text-gray-400">
+                        <svg class="w-5 h-5 text-green-500 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        10 team members
+                    </li>
+                </ul>
+                <a href="/contact" class="block w-full text-center bg-gray-100 dark:bg-gray-800 text-gray-900 dark:text-white px-6 py-3 rounded-xl font-semibold hover:bg-gray-200 dark:hover:bg-gray-700 transition-colors">
+                    Start Free Trial
+                </a>
+            </div>
+
+            {# Enterprise #}
+            <div class="bg-white dark:bg-gray-900 rounded-2xl p-8 shadow-sm border border-gray-200 dark:border-gray-700">
+                <h3 class="text-lg font-bold text-gray-900 dark:text-white mb-2">Enterprise</h3>
+                <p class="text-gray-500 dark:text-gray-400 text-sm mb-4">For large operations & agencies</p>
+                <div class="mb-6">
+                    <span class="text-4xl font-bold text-gray-900 dark:text-white">EUR 399+</span>
+                    <span class="text-gray-500 dark:text-gray-400">/month</span>
+                </div>
+                <ul class="space-y-3 mb-8 text-sm">
+                    <li class="flex items-center text-gray-600 dark:text-gray-400">
+                        <svg class="w-5 h-5 text-green-500 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        Unlimited orders
+                    </li>
+                    <li class="flex items-center text-gray-600 dark:text-gray-400">
+                        <svg class="w-5 h-5 text-green-500 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        Everything in Business
+                    </li>
+                    <li class="flex items-center text-gray-600 dark:text-gray-400">
+                        <svg class="w-5 h-5 text-green-500 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        <strong>White-label option</strong>
+                    </li>
+                    <li class="flex items-center text-gray-600 dark:text-gray-400">
+                        <svg class="w-5 h-5 text-green-500 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        Custom integrations
+                    </li>
+                    <li class="flex items-center text-gray-600 dark:text-gray-400">
+                        <svg class="w-5 h-5 text-green-500 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        99.9% SLA
+                    </li>
+                    <li class="flex items-center text-gray-600 dark:text-gray-400">
+                        <svg class="w-5 h-5 text-green-500 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>
+                        Dedicated support
+                    </li>
+                </ul>
+                <a href="/contact" class="block w-full text-center bg-gray-100 dark:bg-gray-800 text-gray-900 dark:text-white px-6 py-3 rounded-xl font-semibold hover:bg-gray-200 dark:hover:bg-gray-700 transition-colors">
+                    Contact Sales
+                </a>
+            </div>
+        </div>
+
+        <p class="text-center text-gray-500 dark:text-gray-400 mt-8">
+            All plans include a 14-day free trial. No credit card required.
+        </p>
+    </div>
+</section>
+
+<!-- ═══════════════════════════════════════════════════════════════ -->
+<!-- TESTIMONIAL / SOCIAL PROOF                                       -->
+<!-- ═══════════════════════════════════════════════════════════════ -->
+<section class="py-20 bg-white dark:bg-gray-900">
+    <div class="max-w-4xl mx-auto px-4 sm:px-6 lg:px-8 text-center">
+        <div class="inline-block px-4 py-2 bg-yellow-100 dark:bg-yellow-900/30 text-yellow-600 dark:text-yellow-400 rounded-full text-sm font-semibold mb-8">
+            Built for Luxembourg
+        </div>
+
+        <blockquote class="text-2xl md:text-3xl font-medium text-gray-900 dark:text-white mb-8 leading-relaxed">
+            "Finally, a tool that understands what Letzshop sellers actually need. No more spreadsheets, no more VAT headaches."
+        </blockquote>
+
+        <div class="flex items-center justify-center gap-4">
+            <div class="w-12 h-12 bg-gray-200 dark:bg-gray-700 rounded-full flex items-center justify-center text-xl">
+                👩
+            </div>
+            <div class="text-left">
+                <div class="font-semibold text-gray-900 dark:text-white">Marie L.</div>
+                <div class="text-gray-500 dark:text-gray-400 text-sm">Letzshop Vendor, Luxembourg City</div>
+            </div>
+        </div>
+    </div>
+</section>
+
+<!-- ═══════════════════════════════════════════════════════════════ -->
+<!-- FINAL CTA                                                        -->
+<!-- ═══════════════════════════════════════════════════════════════ -->
+<section class="py-20 bg-gray-900 text-white">
+    <div class="max-w-4xl mx-auto px-4 sm:px-6 lg:px-8 text-center">
+        <h2 class="text-3xl md:text-4xl font-bold mb-6">
+            Ready to Take Control of Your Letzshop Business?
        </h2>
-        <p class="text-xl mb-10 opacity-90">
-            Join thousands of successful vendors on our platform
+        <p class="text-xl text-gray-300 mb-10">
+            Join Luxembourg vendors who've stopped fighting spreadsheets and started growing their business.
        </p>

        <div class="flex flex-col sm:flex-row gap-4 justify-center">
            <a href="/contact"
-               class="inline-flex items-center justify-center bg-white text-gray-900 px-8 py-4 rounded-xl font-bold hover:shadow-2xl transform hover:scale-105 transition-all duration-200">
-                <span>Get Started Free</span>
+               class="inline-flex items-center justify-center bg-blue-500 hover:bg-blue-600 text-white px-8 py-4 rounded-xl font-bold transition-all duration-200 shadow-lg">
+                <span>Start Your 14-Day Free Trial</span>
                <svg class="w-5 h-5 ml-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13 7l5 5m0 0l-5 5m5-5H6"></path>
                </svg>
            </a>
-            <a href="/about"
-               class="inline-flex items-center justify-center border-2 border-white text-white px-8 py-4 rounded-xl font-bold hover:bg-white/10 backdrop-blur-sm transition-all duration-200">
-                Learn More About Us
-            </a>
        </div>

-        <p class="mt-8 text-sm opacity-75">
-            No credit card required · Free 14-day trial · Cancel anytime
+        <p class="mt-8 text-sm text-gray-400">
+            No credit card required. Setup in 5 minutes. Full Professional features during trial.
        </p>
    </div>
 </section>
--- a/docs/marketing/pricing.md
+++ b/docs/marketing/pricing.md
@@ -4,7 +4,7 @@

 **"Lightweight OMS for Letzshop Sellers"**

-A focused Order Management System that works alongside Letzshop, not instead of it. Provides the operational tools Letzshop lacks: real inventory, correct invoicing, customer ownership.
+A focused Order Management System built specifically for Luxembourg e-commerce. Works alongside Letzshop, not instead of it. Provides the operational tools Letzshop lacks: real inventory, correct invoicing, customer ownership.

 ---

@@ -79,80 +79,104 @@ A focused Order Management System that works alongside Letzshop, not instead of

 **Upgrade Triggers:**
 - Exceeds 500 orders/month
- Multiple Letzshop vendor accounts
- Needs API for integrations
+- Needs analytics and reporting
 - Team grows beyond 3
+- Accountant needs structured exports

 ---

 ### Business - EUR 199/month

-**Target:** High-volume vendors, teams, multiple operations
+**Target:** High-volume vendors, teams, data-driven operations

 | Feature | Limit |
 |---------|-------|
-| Letzshop Order Sync | Unlimited orders |
+| Letzshop Order Sync | Up to 2,000 orders/month |
 | Everything in Professional | Included |
-| **Multi-Vendor Support** | Multiple Letzshop accounts |
-| **API Access** | For custom integrations |
+| **Analytics Dashboard** | Sales trends, top products, customer insights |
 | **Accounting Export** | CSV/XML for accounting software |
+| **Bulk Operations** | Mass product updates, bulk invoicing |
+| **Advanced Reporting** | Custom date ranges, exportable reports |
+| **API Access** | For custom integrations |
+| **Automation Rules** | Auto-confirm orders, low-stock alerts |
 | Team Members | 10 users |
 | Team Roles & Permissions | Full access control |
 | Order History | Unlimited |
-| Phone Support | Available |
-| Dedicated Onboarding | 2-hour session included |
+| Priority Support | 4h response, phone available |

-**Value Proposition:** "Enterprise-grade OMS at SMB pricing."
+**Value Proposition:** "Scale with confidence. Analytics, automation, and full control."
+
+**Upgrade Triggers:**
+- Exceeds 2,000 orders/month
+- Needs white-label or custom integrations
+- Requires SLA guarantee
+- Multiple brands/operations

 ---

-### Enterprise - Custom Pricing
+### Enterprise - EUR 399+/month (Custom)

-**Target:** Large operations, special requirements
+**Target:** Large operations, special requirements, agencies

 | Feature | Notes |
 |---------|-------|
 | Everything in Business | Included |
+| Unlimited Orders | No volume limits |
 | Unlimited Team Members | As needed |
-| Custom Integrations | Built to spec |
-| SLA Guarantee | 99.9% uptime |
-| Dedicated Account Manager | Named contact |
-| On-Premise Option | If required |
+| **White-Label Option** | Remove Wizamart branding |
+| **Custom Integrations** | Connect to ERP, accounting software |
+| **Multi-Vendor Support** | Multiple Letzshop accounts under one dashboard |
+| **SLA Guarantee** | 99.9% uptime commitment |
+| **Dedicated Account Manager** | Named contact |
+| **On-Premise Option** | For security-sensitive clients |
+| **Custom Development** | Bespoke features on request |

-**Starting at EUR 499/month** - Contact for quote
+**Starting at EUR 399/month** - Contact for quote

 ---

 ## Feature Comparison Matrix

-| Feature | Essential | Professional | Business |
-|---------|:---------:|:------------:|:--------:|
+| Feature | Essential | Professional | Business | Enterprise |
+|---------|:---------:|:------------:|:--------:|:----------:|
 | **Orders** |
-| Letzshop Sync | 100/mo | 500/mo | Unlimited |
-| Order Confirmation | ✓ | ✓ | ✓ |
-| Tracking Sync | ✓ | ✓ | ✓ |
-| Order History | 6 months | 24 months | Unlimited |
+| Letzshop Sync | 100/mo | 500/mo | 2,000/mo | Unlimited |
+| Order Confirmation | Yes | Yes | Yes | Yes |
+| Tracking Sync | Yes | Yes | Yes | Yes |
+| Order History | 6 months | 24 months | Unlimited | Unlimited |
 | **Inventory** |
-| Product Limit | 200 | Unlimited | Unlimited |
-| Stock Levels | ✓ | ✓ | ✓ |
-| Product Locations | - | ✓ | ✓ |
-| Incoming Stock / PO | - | ✓ | ✓ |
+| Product Limit | 200 | Unlimited | Unlimited | Unlimited |
+| Stock Levels | Yes | Yes | Yes | Yes |
+| Product Locations | - | Yes | Yes | Yes |
+| Incoming Stock / PO | - | Yes | Yes | Yes |
 | **Invoicing** |
-| Luxembourg Invoice | ✓ | ✓ | ✓ |
-| EU VAT Invoice | - | ✓ | ✓ |
-| Accounting Export | - | - | ✓ |
+| Luxembourg Invoice | Yes | Yes | Yes | Yes |
+| EU VAT Invoice | - | Yes | Yes | Yes |
+| Bulk Invoicing | - | - | Yes | Yes |
+| Accounting Export | - | - | Yes | Yes |
 | **Customers** |
-| Customer List | View | View + Export | View + Export |
+| Customer List | View | View + Export | View + Export | View + Export |
+| **Analytics & Reporting** |
+| Basic Stats | Yes | Yes | Yes | Yes |
+| Analytics Dashboard | - | - | Yes | Yes |
+| Advanced Reporting | - | - | Yes | Yes |
+| Custom Reports | - | - | - | Yes |
+| **Automation** |
+| Low Stock Alerts | - | - | Yes | Yes |
+| Auto-Confirm Orders | - | - | Yes | Yes |
+| Custom Automation | - | - | - | Yes |
 | **Team** |
-| Users | 1 | 3 | 10 |
-| Roles & Permissions | - | - | ✓ |
-| **Operations** |
-| Multi-Vendor | - | - | ✓ |
-| API Access | - | - | ✓ |
+| Users | 1 | 3 | 10 | Unlimited |
+| Roles & Permissions | - | - | Yes | Yes |
+| **Integration** |
+| API Access | - | - | Yes | Yes |
+| Custom Integrations | - | - | - | Yes |
+| White-Label | - | - | - | Yes |
 | **Support** |
-| Email | 72h | 24h | 24h |
-| Phone | - | - | ✓ |
-| Onboarding | - | - | Included |
+| Email | 72h | 24h | 4h | 4h |
+| Phone | - | - | Yes | Yes |
+| Dedicated Manager | - | - | - | Yes |
+| SLA | - | - | - | 99.9% |

 ---

@@ -173,6 +197,7 @@ A focused Order Management System that works alongside Letzshop, not instead of
 | Essential | EUR 49/mo | EUR 490/year (EUR 41/mo) |
 | Professional | EUR 99/mo | EUR 990/year (EUR 82/mo) |
 | Business | EUR 199/mo | EUR 1,990/year (EUR 166/mo) |
+| Enterprise | Custom | Contact for annual pricing |

 ---

@@ -191,8 +216,8 @@ A focused Order Management System that works alongside Letzshop, not instead of
 | Add-On | Price | Description |
 |--------|-------|-------------|
 | Additional Team Member | +EUR 9/user/mo | Beyond plan limit |
-| Additional Vendor Account | +EUR 29/mo | For Professional tier |
-| Extended History | +EUR 19/mo | Unlimited history for Essential |
+| Extended History | +EUR 19/mo | Unlimited history for Essential/Professional |
+| Extra Order Capacity | +EUR 29/100 orders | Beyond plan limit |

 ---

@@ -210,23 +235,43 @@ A focused Order Management System that works alongside Letzshop, not instead of
   - Most active vendors will need this
   - Price feels reasonable for operational software

-3. **Business (EUR 199) provides anchor**
-   - Makes Professional look affordable
-   - Captures high-value customers
-   - Multi-vendor is a clear enterprise need
+3. **Business (EUR 199) is for growth**
+   - Analytics and automation justify the jump
+   - 2,000 orders/month covers most high-volume vendors
+   - API access enables custom workflows

-4. **No per-order fees**
+4. **Enterprise (EUR 399+) captures high-value clients**
+   - White-label and SLA for agencies/resellers
+   - Custom integrations for complex operations
+   - Multi-vendor for the rare but valuable cases
+
+5. **No per-order fees**
   - Unlike Letzshop's commission model
   - The more you sell, the better the value
   - Predictable costs for budgeting

-5. **Annual = lower churn**
+6. **Annual = lower churn**
   - 17% discount is meaningful
   - 2 months free is easy to understand
   - Reduces monthly cancellation opportunity

 ---

+## Upgrade Path Logic
+
+```
+Essential -> Professional
+  Triggers: Ships to EU (VAT) | 100+ orders | Team access needed
+
+Professional -> Business
+  Triggers: 500+ orders | Needs analytics | Accountant needs exports
+
+Business -> Enterprise
+  Triggers: 2,000+ orders | White-label | SLA required | Custom integrations
+```
+
+---
+
 ## Competitive Positioning

 | Alternative | Their Model | Our Advantage |
@@ -244,21 +289,27 @@ A focused Order Management System that works alongside Letzshop, not instead of
 ### Qualifying Questions

 1. "How many orders do you process per month?"
-   - <100 → Essential
-   - 100-500 → Professional
-   - 500+ → Business
+   - <100 -> Essential
+   - 100-500 -> Professional
+   - 500-2000 -> Business
+   - 2000+ -> Enterprise

 2. "Do you ship to other EU countries?"
-   - Yes → Professional minimum (VAT invoicing)
-   - No → Essential may suffice
+   - Yes -> Professional minimum (VAT invoicing)
+   - No -> Essential may suffice

 3. "How many people handle orders?"
-   - 1 → Essential
-   - 2-3 → Professional
-   - 4+ → Business
+   - 1 -> Essential
+   - 2-3 -> Professional
+   - 4-10 -> Business
+   - 10+ -> Enterprise

-4. "Do you have multiple Letzshop accounts?"
-   - Yes → Business
+4. "Do you need analytics and reporting?"
+   - Yes -> Business minimum
+
+5. "Do you need to connect to other systems (ERP, accounting)?"
+   - API needed -> Business
+   - Custom integration -> Enterprise

 ### Objection Handling

@@ -270,3 +321,6 @@ A focused Order Management System that works alongside Letzshop, not instead of

 **"Why do I need Professional for EU invoices?"**
 > "EU VAT rules are complex - wrong rate, wrong country, wrong invoice = compliance issues. We handle this automatically so your accountant doesn't have to fix it."
+
+**"Business seems expensive"**
+> "At 500+ orders/month, you're doing at least EUR 25,000/month in revenue. EUR 199 is less than 1% of that, and the analytics alone will help you find opportunities to grow."
--- a/docs/marketing/strategy/back-office-positioning.md
+++ b/docs/marketing/strategy/back-office-positioning.md
@@ -167,22 +167,22 @@ The goal is natural upgrade pressure based on **growth**, not artificial limits.
 | Growth Signal | Triggers Upgrade To |
 |---------------|---------------------|
 | More orders | Higher tier (volume) |
-| Shipping to EU | Pro (VAT invoicing) |
-| Team grows | Pro/Business (users) |
-| More products | Pro (locations, PO) |
-| Multiple shops | Business (multi-vendor) |
+| Shipping to EU | Professional (VAT invoicing) |
+| Team grows | Professional/Business (users) |
+| Needs analytics | Business (reporting) |
+| Custom integrations | Enterprise (API/white-label) |

 ---

 ### Essential - EUR 49/month

-**Target:** Solo vendors, getting started, Letzshop + 1 channel
+**Target:** Solo vendors, getting started, Letzshop-focused

 | Feature | Limit |
 |---------|-------|
 | Letzshop Order Sync | Up to 100 orders/month |
 | Inventory Management | Up to 200 products |
-| Basic Invoices (Luxembourg) | Included |
+| Basic Invoices (Luxembourg VAT) | Included |
 | Team Members | 1 user |
 | Order History | 6 months |
 | Email Support | 72h response |
@@ -207,44 +207,69 @@ The goal is natural upgrade pressure based on **growth**, not artificial limits.
 | Order History | 24 months |
 | Priority Email Support | 24h response |

-**Why they upgrade:** Multiple team members, multiple Letzshop accounts, need API.
+**Why they upgrade:** Hit 500 orders, need analytics/reporting, team grows beyond 3.

 ---

 ### Business - EUR 199/month

-**Target:** Teams, high volume, multiple vendor accounts
+**Target:** High-volume vendors, teams, data-driven operations

 | Feature | Limit |
 |---------|-------|
-| Letzshop Order Sync | Unlimited orders |
+| Letzshop Order Sync | Up to 2,000 orders/month |
 | Everything in Professional | Included |
-| **Multi-Vendor Support** | Multiple Letzshop accounts |
+| **Analytics Dashboard** | Sales trends, top products, insights |
+| **Accounting Export** | CSV/XML for accounting software |
+| **Bulk Operations** | Mass updates, bulk invoicing |
+| **Advanced Reporting** | Custom date ranges, exports |
 | **API Access** | For custom integrations |
-| **Accounting Export** | CSV/XML for accountants |
+| **Automation Rules** | Auto-confirm, low-stock alerts |
 | Team Members | 10 users |
 | Team Roles & Permissions | Full RBAC |
 | Order History | Unlimited |
-| Phone Support | Available |
-| Dedicated Onboarding | Included |
+| Priority Support | 4h response, phone available |
+
+**Why they upgrade:** Hit 2,000 orders, need white-label, need SLA, custom integrations.
+
+---
+
+### Enterprise - EUR 399+/month (Custom)
+
+**Target:** Large operations, agencies, special requirements
+
+| Feature | Notes |
+|---------|-------|
+| Everything in Business | Included |
+| Unlimited Orders | No volume limits |
+| Unlimited Team Members | As needed |
+| **White-Label Option** | Remove Wizamart branding |
+| **Custom Integrations** | Connect to ERP, accounting software |
+| **Multi-Vendor Support** | Multiple Letzshop accounts |
+| **SLA Guarantee** | 99.9% uptime |
+| **Dedicated Account Manager** | Named contact |

 ---

 ### Feature Access by Tier

-| Feature | Essential | Professional | Business |
-|---------|:---------:|:------------:|:--------:|
-| Letzshop Order Sync | 100/mo | 500/mo | Unlimited |
-| Inventory Management | 200 SKU | Unlimited | Unlimited |
-| Product Locations | - | ✓ | ✓ |
-| Incoming Stock / PO | - | ✓ | ✓ |
-| Basic Invoice (LU) | ✓ | ✓ | ✓ |
-| EU VAT Invoice | - | ✓ | ✓ |
-| Customer List | View | + Export | + Export |
-| Team Members | 1 | 3 | 10 |
-| Multi-Vendor | - | - | ✓ |
-| API Access | - | - | ✓ |
-| Order History | 6 mo | 24 mo | Unlimited |
+| Feature | Essential | Professional | Business | Enterprise |
+|---------|:---------:|:------------:|:--------:|:----------:|
+| Letzshop Order Sync | 100/mo | 500/mo | 2,000/mo | Unlimited |
+| Inventory Management | 200 SKU | Unlimited | Unlimited | Unlimited |
+| Product Locations | - | Yes | Yes | Yes |
+| Incoming Stock / PO | - | Yes | Yes | Yes |
+| Basic Invoice (LU) | Yes | Yes | Yes | Yes |
+| EU VAT Invoice | - | Yes | Yes | Yes |
+| Customer List | View | + Export | + Export | + Export |
+| Analytics Dashboard | - | - | Yes | Yes |
+| Accounting Export | - | - | Yes | Yes |
+| API Access | - | - | Yes | Yes |
+| Automation Rules | - | - | Yes | Yes |
+| White-Label | - | - | - | Yes |
+| Multi-Vendor | - | - | - | Yes |
+| Team Members | 1 | 3 | 10 | Unlimited |
+| Order History | 6 mo | 24 mo | Unlimited | Unlimited |

 ---

@@ -260,12 +285,18 @@ The goal is natural upgrade pressure based on **growth**, not artificial limits.
   - Product locations + PO = operational maturity
   - 3 users = small team

-3. **Business (EUR 199)** is for scale
-   - Multi-vendor = manages multiple Letzshop shops
-   - API = integrates with other systems
-   - 10 users = real team
+3. **Business (EUR 199)** is for growth
+   - Analytics and automation justify the price jump
+   - 2,000 orders/month covers most high-volume vendors
+   - API enables custom workflows
+   - No multi-vendor requirement (most don't need it)

-**Price anchoring:** EUR 99 is the target tier. EUR 49 exists to capture price-sensitive leads. EUR 199 exists to make EUR 99 look reasonable.
+4. **Enterprise (EUR 399+)** captures high-value clients
+   - White-label for agencies/resellers
+   - Multi-vendor for the rare cases that need it
+   - SLA and dedicated support for critical operations
+
+**Price anchoring:** EUR 99 is the target tier. EUR 49 captures price-sensitive leads. EUR 199 is for growth. EUR 399+ makes EUR 199 look reasonable.

 ---

--- a/models/database/init.py
+++ b/models/database/init.py
@@ -19,6 +19,12 @@ from .company import Company
 from .content_page import ContentPage
 from .customer import Customer, CustomerAddress
 from .inventory import Inventory
+from .invoice import (
+    Invoice,
+    InvoiceStatus,
+    VATRegime,
+    VendorInvoiceSettings,
+)
 from .letzshop import (
    LetzshopFulfillmentQueue,
    LetzshopHistoricalImportJob,
@@ -44,6 +50,12 @@ from .order import Order, OrderItem
 from .order_item_exception import OrderItemException
 from .product import Product
 from .product_translation import ProductTranslation
+from .subscription import (
+    SubscriptionStatus,
+    TierCode,
+    TIER_LIMITS,
+    VendorSubscription,
+)
 from .test_run import TestCollection, TestResult, TestRun
 from .user import User
 from .vendor import Role, Vendor, VendorUser
@@ -95,6 +107,11 @@ __all__ = [
    "MarketplaceImportError",
    # Inventory
    "Inventory",
+    # Invoicing
+    "Invoice",
+    "InvoiceStatus",
+    "VATRegime",
+    "VendorInvoiceSettings",
    # Orders
    "Order",
    "OrderItem",
@@ -104,6 +121,11 @@ __all__ = [
    "LetzshopFulfillmentQueue",
    "LetzshopSyncLog",
    "LetzshopHistoricalImportJob",
+    # Subscription
+    "VendorSubscription",
+    "SubscriptionStatus",
+    "TierCode",
+    "TIER_LIMITS",
    # Messaging
    "Conversation",
    "ConversationParticipant",
--- a/models/database/invoice.py
+++ b/models/database/invoice.py
@@ -0,0 +1,215 @@
+# models/database/invoice.py
+"""
+Invoice database models for the OMS.
+
+Provides models for:
+- VendorInvoiceSettings: Per-vendor invoice configuration (company details, VAT, numbering)
+- Invoice: Invoice records with snapshots of seller/buyer details
+"""
+
+import enum
+
+from sqlalchemy import (
+    Boolean,
+    Column,
+    DateTime,
+    ForeignKey,
+    Index,
+    Integer,
+    Numeric,
+    String,
+    Text,
+)
+from sqlalchemy.dialects.sqlite import JSON
+from sqlalchemy.orm import relationship
+
+from app.core.database import Base
+from models.database.base import TimestampMixin
+
+
+class VendorInvoiceSettings(Base, TimestampMixin):
+    """
+    Per-vendor invoice configuration.
+
+    Stores company details, VAT number, invoice numbering preferences,
+    and payment information for invoice generation.
+
+    One-to-one relationship with Vendor.
+    """
+
+    __tablename__ = "vendor_invoice_settings"
+
+    id = Column(Integer, primary_key=True, index=True)
+    vendor_id = Column(
+        Integer, ForeignKey("vendors.id"), unique=True, nullable=False, index=True
+    )
+
+    # Legal company details for invoice header
+    company_name = Column(String(255), nullable=False)  # Legal name for invoices
+    company_address = Column(String(255), nullable=True)  # Street address
+    company_city = Column(String(100), nullable=True)
+    company_postal_code = Column(String(20), nullable=True)
+    company_country = Column(String(2), nullable=False, default="LU")  # ISO country code
+
+    # VAT information
+    vat_number = Column(String(50), nullable=True)  # e.g., "LU12345678"
+    is_vat_registered = Column(Boolean, default=True, nullable=False)
+
+    # OSS (One-Stop-Shop) for EU VAT
+    is_oss_registered = Column(Boolean, default=False, nullable=False)
+    oss_registration_country = Column(String(2), nullable=True)  # ISO country code
+
+    # Invoice numbering
+    invoice_prefix = Column(String(20), default="INV", nullable=False)
+    invoice_next_number = Column(Integer, default=1, nullable=False)
+    invoice_number_padding = Column(Integer, default=5, nullable=False)  # e.g., INV00001
+
+    # Payment information
+    payment_terms = Column(Text, nullable=True)  # e.g., "Payment due within 30 days"
+    bank_name = Column(String(255), nullable=True)
+    bank_iban = Column(String(50), nullable=True)
+    bank_bic = Column(String(20), nullable=True)
+
+    # Invoice footer
+    footer_text = Column(Text, nullable=True)  # Custom footer text
+
+    # Default VAT rate for Luxembourg invoices (17% standard)
+    default_vat_rate = Column(Numeric(5, 2), default=17.00, nullable=False)
+
+    # Relationships
+    vendor = relationship("Vendor", back_populates="invoice_settings")
+
+    def __repr__(self):
+        return f"<VendorInvoiceSettings(vendor_id={self.vendor_id}, company='{self.company_name}')>"
+
+    def get_next_invoice_number(self) -> str:
+        """Generate the next invoice number and increment counter."""
+        number = str(self.invoice_next_number).zfill(self.invoice_number_padding)
+        return f"{self.invoice_prefix}{number}"
+
+
+class InvoiceStatus(str, enum.Enum):
+    """Invoice status enumeration."""
+
+    DRAFT = "draft"
+    ISSUED = "issued"
+    PAID = "paid"
+    CANCELLED = "cancelled"
+
+
+class VATRegime(str, enum.Enum):
+    """VAT regime for invoice calculation."""
+
+    DOMESTIC = "domestic"  # Same country as seller
+    OSS = "oss"  # EU cross-border with OSS registration
+    REVERSE_CHARGE = "reverse_charge"  # B2B with valid VAT number
+    ORIGIN = "origin"  # Cross-border without OSS (use origin VAT)
+    EXEMPT = "exempt"  # VAT exempt
+
+
+class Invoice(Base, TimestampMixin):
+    """
+    Invoice record with snapshots of seller/buyer details.
+
+    Stores complete invoice data including snapshots of seller and buyer
+    details at time of creation for audit purposes.
+    """
+
+    __tablename__ = "invoices"
+
+    id = Column(Integer, primary_key=True, index=True)
+    vendor_id = Column(Integer, ForeignKey("vendors.id"), nullable=False, index=True)
+    order_id = Column(Integer, ForeignKey("orders.id"), nullable=True, index=True)
+
+    # Invoice identification
+    invoice_number = Column(String(50), nullable=False)
+    invoice_date = Column(DateTime(timezone=True), nullable=False)
+
+    # Status
+    status = Column(String(20), default=InvoiceStatus.DRAFT.value, nullable=False)
+
+    # Seller details snapshot (captured at invoice creation)
+    seller_details = Column(JSON, nullable=False)
+    # Structure: {
+    #   "company_name": str,
+    #   "address": str,
+    #   "city": str,
+    #   "postal_code": str,
+    #   "country": str,
+    #   "vat_number": str | None
+    # }
+
+    # Buyer details snapshot (captured at invoice creation)
+    buyer_details = Column(JSON, nullable=False)
+    # Structure: {
+    #   "name": str,
+    #   "email": str,
+    #   "address": str,
+    #   "city": str,
+    #   "postal_code": str,
+    #   "country": str,
+    #   "vat_number": str | None (for B2B)
+    # }
+
+    # Line items snapshot
+    line_items = Column(JSON, nullable=False)
+    # Structure: [{
+    #   "description": str,
+    #   "quantity": int,
+    #   "unit_price_cents": int,
+    #   "total_cents": int,
+    #   "sku": str | None,
+    #   "ean": str | None
+    # }]
+
+    # VAT information
+    vat_regime = Column(String(20), default=VATRegime.DOMESTIC.value, nullable=False)
+    destination_country = Column(String(2), nullable=True)  # For OSS invoices
+    vat_rate = Column(Numeric(5, 2), nullable=False)  # e.g., 17.00 for 17%
+    vat_rate_label = Column(String(50), nullable=True)  # e.g., "Luxembourg Standard VAT"
+
+    # Amounts (stored in cents for precision)
+    currency = Column(String(3), default="EUR", nullable=False)
+    subtotal_cents = Column(Integer, nullable=False)  # Before VAT
+    vat_amount_cents = Column(Integer, nullable=False)  # VAT amount
+    total_cents = Column(Integer, nullable=False)  # After VAT
+
+    # Payment information
+    payment_terms = Column(Text, nullable=True)
+    bank_details = Column(JSON, nullable=True)  # IBAN, BIC snapshot
+    footer_text = Column(Text, nullable=True)
+
+    # PDF storage
+    pdf_generated_at = Column(DateTime(timezone=True), nullable=True)
+    pdf_path = Column(String(500), nullable=True)  # Path to stored PDF
+
+    # Notes
+    notes = Column(Text, nullable=True)  # Internal notes
+
+    # Relationships
+    vendor = relationship("Vendor", back_populates="invoices")
+    order = relationship("Order", back_populates="invoices")
+
+    __table_args__ = (
+        Index("idx_invoice_vendor_number", "vendor_id", "invoice_number", unique=True),
+        Index("idx_invoice_vendor_date", "vendor_id", "invoice_date"),
+        Index("idx_invoice_status", "vendor_id", "status"),
+    )
+
+    def __repr__(self):
+        return f"<Invoice(id={self.id}, number='{self.invoice_number}', status='{self.status}')>"
+
+    @property
+    def subtotal(self) -> float:
+        """Get subtotal in EUR."""
+        return self.subtotal_cents / 100
+
+    @property
+    def vat_amount(self) -> float:
+        """Get VAT amount in EUR."""
+        return self.vat_amount_cents / 100
+
+    @property
+    def total(self) -> float:
+        """Get total in EUR."""
+        return self.total_cents / 100
--- a/models/database/order.py
+++ b/models/database/order.py
@@ -143,6 +143,9 @@ class Order(Base, TimestampMixin):
    items = relationship(
        "OrderItem", back_populates="order", cascade="all, delete-orphan"
    )
+    invoices = relationship(
+        "Invoice", back_populates="order", cascade="all, delete-orphan"
+    )

    # Composite indexes for common queries
    __table_args__ = (
--- a/models/database/subscription.py
+++ b/models/database/subscription.py
@@ -0,0 +1,354 @@
+# models/database/subscription.py
+"""
+Subscription database models for tier-based access control.
+
+Provides models for:
+- SubscriptionTier: Tier definitions with limits and features
+- VendorSubscription: Per-vendor subscription tracking
+
+Tier Structure:
+- Essential (€49/mo): 100 orders/mo, 200 products, 1 user, LU invoicing
+- Professional (€99/mo): 500 orders/mo, unlimited products, 3 users, EU VAT
+- Business (€199/mo): 2000 orders/mo, unlimited products, 10 users, analytics, API
+- Enterprise (€399+/mo): Unlimited, white-label, custom integrations
+"""
+
+import enum
+from datetime import UTC, datetime
+
+from sqlalchemy import (
+    Boolean,
+    Column,
+    DateTime,
+    ForeignKey,
+    Index,
+    Integer,
+    Numeric,
+    String,
+    Text,
+)
+from sqlalchemy.dialects.sqlite import JSON
+from sqlalchemy.orm import relationship
+
+from app.core.database import Base
+from models.database.base import TimestampMixin
+
+
+class TierCode(str, enum.Enum):
+    """Subscription tier codes."""
+
+    ESSENTIAL = "essential"
+    PROFESSIONAL = "professional"
+    BUSINESS = "business"
+    ENTERPRISE = "enterprise"
+
+
+class SubscriptionStatus(str, enum.Enum):
+    """Subscription status."""
+
+    TRIAL = "trial"  # Free trial period
+    ACTIVE = "active"  # Paid and active
+    PAST_DUE = "past_due"  # Payment failed, grace period
+    CANCELLED = "cancelled"  # Cancelled, access until period end
+    EXPIRED = "expired"  # No longer active
+
+
+# Tier limit definitions (hardcoded for now, could be moved to DB)
+TIER_LIMITS = {
+    TierCode.ESSENTIAL: {
+        "name": "Essential",
+        "price_monthly_cents": 4900,  # €49
+        "price_annual_cents": 49000,  # €490 (2 months free)
+        "orders_per_month": 100,
+        "products_limit": 200,
+        "team_members": 1,
+        "order_history_months": 6,
+        "features": [
+            "letzshop_sync",
+            "inventory_basic",
+            "invoice_lu",
+            "customer_view",
+        ],
+    },
+    TierCode.PROFESSIONAL: {
+        "name": "Professional",
+        "price_monthly_cents": 9900,  # €99
+        "price_annual_cents": 99000,  # €990
+        "orders_per_month": 500,
+        "products_limit": None,  # Unlimited
+        "team_members": 3,
+        "order_history_months": 24,
+        "features": [
+            "letzshop_sync",
+            "inventory_locations",
+            "inventory_purchase_orders",
+            "invoice_lu",
+            "invoice_eu_vat",
+            "customer_view",
+            "customer_export",
+        ],
+    },
+    TierCode.BUSINESS: {
+        "name": "Business",
+        "price_monthly_cents": 19900,  # €199
+        "price_annual_cents": 199000,  # €1990
+        "orders_per_month": 2000,
+        "products_limit": None,  # Unlimited
+        "team_members": 10,
+        "order_history_months": None,  # Unlimited
+        "features": [
+            "letzshop_sync",
+            "inventory_locations",
+            "inventory_purchase_orders",
+            "invoice_lu",
+            "invoice_eu_vat",
+            "invoice_bulk",
+            "customer_view",
+            "customer_export",
+            "analytics_dashboard",
+            "accounting_export",
+            "api_access",
+            "automation_rules",
+            "team_roles",
+        ],
+    },
+    TierCode.ENTERPRISE: {
+        "name": "Enterprise",
+        "price_monthly_cents": 39900,  # €399 starting
+        "price_annual_cents": None,  # Custom
+        "orders_per_month": None,  # Unlimited
+        "products_limit": None,  # Unlimited
+        "team_members": None,  # Unlimited
+        "order_history_months": None,  # Unlimited
+        "features": [
+            "letzshop_sync",
+            "inventory_locations",
+            "inventory_purchase_orders",
+            "invoice_lu",
+            "invoice_eu_vat",
+            "invoice_bulk",
+            "customer_view",
+            "customer_export",
+            "analytics_dashboard",
+            "accounting_export",
+            "api_access",
+            "automation_rules",
+            "team_roles",
+            "white_label",
+            "multi_vendor",
+            "custom_integrations",
+            "sla_guarantee",
+            "dedicated_support",
+        ],
+    },
+}
+
+
+class VendorSubscription(Base, TimestampMixin):
+    """
+    Per-vendor subscription tracking.
+
+    Tracks the vendor's subscription tier, billing period,
+    and usage counters for limit enforcement.
+    """
+
+    __tablename__ = "vendor_subscriptions"
+
+    id = Column(Integer, primary_key=True, index=True)
+    vendor_id = Column(
+        Integer, ForeignKey("vendors.id"), unique=True, nullable=False, index=True
+    )
+
+    # Tier
+    tier = Column(
+        String(20), default=TierCode.ESSENTIAL.value, nullable=False, index=True
+    )
+
+    # Status
+    status = Column(
+        String(20), default=SubscriptionStatus.TRIAL.value, nullable=False, index=True
+    )
+
+    # Billing period
+    period_start = Column(DateTime(timezone=True), nullable=False)
+    period_end = Column(DateTime(timezone=True), nullable=False)
+    is_annual = Column(Boolean, default=False, nullable=False)
+
+    # Trial info
+    trial_ends_at = Column(DateTime(timezone=True), nullable=True)
+
+    # Usage counters (reset each billing period)
+    orders_this_period = Column(Integer, default=0, nullable=False)
+    orders_limit_reached_at = Column(DateTime(timezone=True), nullable=True)
+
+    # Overrides (for custom enterprise deals)
+    custom_orders_limit = Column(Integer, nullable=True)  # Override tier limit
+    custom_products_limit = Column(Integer, nullable=True)
+    custom_team_limit = Column(Integer, nullable=True)
+
+    # Payment info (for future Stripe integration)
+    stripe_customer_id = Column(String(100), nullable=True, index=True)
+    stripe_subscription_id = Column(String(100), nullable=True, index=True)
+
+    # Cancellation
+    cancelled_at = Column(DateTime(timezone=True), nullable=True)
+    cancellation_reason = Column(Text, nullable=True)
+
+    # Relationships
+    vendor = relationship("Vendor", back_populates="subscription")
+
+    __table_args__ = (
+        Index("idx_subscription_vendor_status", "vendor_id", "status"),
+        Index("idx_subscription_period", "period_start", "period_end"),
+    )
+
+    def __repr__(self):
+        return f"<VendorSubscription(vendor_id={self.vendor_id}, tier='{self.tier}', status='{self.status}')>"
+
+    # =========================================================================
+    # Tier Limit Properties
+    # =========================================================================
+
+    @property
+    def tier_limits(self) -> dict:
+        """Get the limit definitions for current tier."""
+        return TIER_LIMITS.get(TierCode(self.tier), TIER_LIMITS[TierCode.ESSENTIAL])
+
+    @property
+    def orders_limit(self) -> int | None:
+        """Get effective orders limit (custom or tier default)."""
+        if self.custom_orders_limit is not None:
+            return self.custom_orders_limit
+        return self.tier_limits.get("orders_per_month")
+
+    @property
+    def products_limit(self) -> int | None:
+        """Get effective products limit (custom or tier default)."""
+        if self.custom_products_limit is not None:
+            return self.custom_products_limit
+        return self.tier_limits.get("products_limit")
+
+    @property
+    def team_members_limit(self) -> int | None:
+        """Get effective team members limit (custom or tier default)."""
+        if self.custom_team_limit is not None:
+            return self.custom_team_limit
+        return self.tier_limits.get("team_members")
+
+    @property
+    def features(self) -> list[str]:
+        """Get list of enabled features for current tier."""
+        return self.tier_limits.get("features", [])
+
+    # =========================================================================
+    # Status Checks
+    # =========================================================================
+
+    @property
+    def is_active(self) -> bool:
+        """Check if subscription allows access."""
+        return self.status in [
+            SubscriptionStatus.TRIAL.value,
+            SubscriptionStatus.ACTIVE.value,
+            SubscriptionStatus.PAST_DUE.value,  # Grace period
+            SubscriptionStatus.CANCELLED.value,  # Until period end
+        ]
+
+    @property
+    def is_trial(self) -> bool:
+        """Check if currently in trial."""
+        return self.status == SubscriptionStatus.TRIAL.value
+
+    @property
+    def trial_days_remaining(self) -> int | None:
+        """Get remaining trial days."""
+        if not self.is_trial or not self.trial_ends_at:
+            return None
+        remaining = (self.trial_ends_at - datetime.now(UTC)).days
+        return max(0, remaining)
+
+    # =========================================================================
+    # Limit Checks
+    # =========================================================================
+
+    def can_create_order(self) -> tuple[bool, str | None]:
+        """
+        Check if vendor can create/import another order.
+
+        Returns: (can_create, error_message)
+        """
+        if not self.is_active:
+            return False, "Subscription is not active"
+
+        limit = self.orders_limit
+        if limit is None:  # Unlimited
+            return True, None
+
+        if self.orders_this_period >= limit:
+            return False, f"Monthly order limit reached ({limit} orders). Upgrade to continue."
+
+        return True, None
+
+    def can_add_product(self, current_count: int) -> tuple[bool, str | None]:
+        """
+        Check if vendor can add another product.
+
+        Args:
+            current_count: Current number of products
+
+        Returns: (can_add, error_message)
+        """
+        if not self.is_active:
+            return False, "Subscription is not active"
+
+        limit = self.products_limit
+        if limit is None:  # Unlimited
+            return True, None
+
+        if current_count >= limit:
+            return False, f"Product limit reached ({limit} products). Upgrade to add more."
+
+        return True, None
+
+    def can_add_team_member(self, current_count: int) -> tuple[bool, str | None]:
+        """
+        Check if vendor can add another team member.
+
+        Args:
+            current_count: Current number of team members
+
+        Returns: (can_add, error_message)
+        """
+        if not self.is_active:
+            return False, "Subscription is not active"
+
+        limit = self.team_members_limit
+        if limit is None:  # Unlimited
+            return True, None
+
+        if current_count >= limit:
+            return False, f"Team member limit reached ({limit} members). Upgrade to add more."
+
+        return True, None
+
+    def has_feature(self, feature: str) -> bool:
+        """Check if a feature is enabled for current tier."""
+        return feature in self.features
+
+    # =========================================================================
+    # Usage Tracking
+    # =========================================================================
+
+    def increment_order_count(self) -> None:
+        """Increment the order counter for this period."""
+        self.orders_this_period += 1
+
+        # Track when limit was first reached
+        limit = self.orders_limit
+        if limit and self.orders_this_period >= limit and not self.orders_limit_reached_at:
+            self.orders_limit_reached_at = datetime.now(UTC)
+
+    def reset_period_counters(self) -> None:
+        """Reset counters for new billing period."""
+        self.orders_this_period = 0
+        self.orders_limit_reached_at = None
--- a/models/database/vendor.py
+++ b/models/database/vendor.py
@@ -143,6 +143,29 @@ class Vendor(Base, TimestampMixin):
        cascade="all, delete-orphan",
    )

+    # Invoice settings (one-to-one)
+    invoice_settings = relationship(
+        "VendorInvoiceSettings",
+        back_populates="vendor",
+        uselist=False,
+        cascade="all, delete-orphan",
+    )
+
+    # Invoices (one-to-many)
+    invoices = relationship(
+        "Invoice",
+        back_populates="vendor",
+        cascade="all, delete-orphan",
+    )
+
+    # Subscription (one-to-one)
+    subscription = relationship(
+        "VendorSubscription",
+        back_populates="vendor",
+        uselist=False,
+        cascade="all, delete-orphan",
+    )
+
    domains = relationship(
        "VendorDomain",
        back_populates="vendor",
--- a/models/schema/init.py
+++ b/models/schema/init.py
@@ -6,6 +6,7 @@ from . import (
    auth,
    base,
    inventory,
+    invoice,
    marketplace_import_job,
    marketplace_product,
    message,
@@ -19,6 +20,7 @@ from .base import *  # Base Pydantic models
 __all__ = [
    "base",
    "auth",
+    "invoice",
    "marketplace_product",
    "message",
    "inventory",
--- a/models/schema/invoice.py
+++ b/models/schema/invoice.py
@@ -0,0 +1,283 @@
+# models/schema/invoice.py
+"""
+Pydantic schemas for invoice operations.
+
+Supports invoice settings management and invoice generation.
+"""
+
+from datetime import datetime
+from decimal import Decimal
+
+from pydantic import BaseModel, ConfigDict, Field
+
+# ============================================================================
+# Invoice Settings Schemas
+# ============================================================================
+
+
+class VendorInvoiceSettingsCreate(BaseModel):
+    """Schema for creating vendor invoice settings."""
+
+    company_name: str = Field(..., min_length=1, max_length=255)
+    company_address: str | None = Field(None, max_length=255)
+    company_city: str | None = Field(None, max_length=100)
+    company_postal_code: str | None = Field(None, max_length=20)
+    company_country: str = Field(default="LU", min_length=2, max_length=2)
+
+    vat_number: str | None = Field(None, max_length=50)
+    is_vat_registered: bool = True
+
+    is_oss_registered: bool = False
+    oss_registration_country: str | None = Field(None, min_length=2, max_length=2)
+
+    invoice_prefix: str = Field(default="INV", max_length=20)
+    invoice_number_padding: int = Field(default=5, ge=1, le=10)
+
+    payment_terms: str | None = None
+    bank_name: str | None = Field(None, max_length=255)
+    bank_iban: str | None = Field(None, max_length=50)
+    bank_bic: str | None = Field(None, max_length=20)
+
+    footer_text: str | None = None
+    default_vat_rate: Decimal = Field(default=Decimal("17.00"), ge=0, le=100)
+
+
+class VendorInvoiceSettingsUpdate(BaseModel):
+    """Schema for updating vendor invoice settings."""
+
+    company_name: str | None = Field(None, min_length=1, max_length=255)
+    company_address: str | None = Field(None, max_length=255)
+    company_city: str | None = Field(None, max_length=100)
+    company_postal_code: str | None = Field(None, max_length=20)
+    company_country: str | None = Field(None, min_length=2, max_length=2)
+
+    vat_number: str | None = None
+    is_vat_registered: bool | None = None
+
+    is_oss_registered: bool | None = None
+    oss_registration_country: str | None = None
+
+    invoice_prefix: str | None = Field(None, max_length=20)
+    invoice_number_padding: int | None = Field(None, ge=1, le=10)
+
+    payment_terms: str | None = None
+    bank_name: str | None = Field(None, max_length=255)
+    bank_iban: str | None = Field(None, max_length=50)
+    bank_bic: str | None = Field(None, max_length=20)
+
+    footer_text: str | None = None
+    default_vat_rate: Decimal | None = Field(None, ge=0, le=100)
+
+
+class VendorInvoiceSettingsResponse(BaseModel):
+    """Schema for vendor invoice settings response."""
+
+    model_config = ConfigDict(from_attributes=True)
+
+    id: int
+    vendor_id: int
+
+    company_name: str
+    company_address: str | None
+    company_city: str | None
+    company_postal_code: str | None
+    company_country: str
+
+    vat_number: str | None
+    is_vat_registered: bool
+
+    is_oss_registered: bool
+    oss_registration_country: str | None
+
+    invoice_prefix: str
+    invoice_next_number: int
+    invoice_number_padding: int
+
+    payment_terms: str | None
+    bank_name: str | None
+    bank_iban: str | None
+    bank_bic: str | None
+
+    footer_text: str | None
+    default_vat_rate: Decimal
+
+    created_at: datetime
+    updated_at: datetime
+
+
+# ============================================================================
+# Invoice Line Item Schemas
+# ============================================================================
+
+
+class InvoiceLineItem(BaseModel):
+    """Schema for invoice line item."""
+
+    description: str
+    quantity: int = Field(..., ge=1)
+    unit_price_cents: int
+    total_cents: int
+    sku: str | None = None
+    ean: str | None = None
+
+
+class InvoiceLineItemResponse(BaseModel):
+    """Schema for invoice line item in response."""
+
+    description: str
+    quantity: int
+    unit_price_cents: int
+    total_cents: int
+    sku: str | None = None
+    ean: str | None = None
+
+    @property
+    def unit_price(self) -> float:
+        return self.unit_price_cents / 100
+
+    @property
+    def total(self) -> float:
+        return self.total_cents / 100
+
+
+# ============================================================================
+# Invoice Address Schemas
+# ============================================================================
+
+
+class InvoiceSellerDetails(BaseModel):
+    """Seller details for invoice."""
+
+    company_name: str
+    address: str | None = None
+    city: str | None = None
+    postal_code: str | None = None
+    country: str
+    vat_number: str | None = None
+
+
+class InvoiceBuyerDetails(BaseModel):
+    """Buyer details for invoice."""
+
+    name: str
+    email: str | None = None
+    address: str | None = None
+    city: str | None = None
+    postal_code: str | None = None
+    country: str
+    vat_number: str | None = None  # For B2B
+
+
+# ============================================================================
+# Invoice Schemas
+# ============================================================================
+
+
+class InvoiceCreate(BaseModel):
+    """Schema for creating an invoice from an order."""
+
+    order_id: int
+    notes: str | None = None
+
+
+class InvoiceManualCreate(BaseModel):
+    """Schema for creating a manual invoice (without order)."""
+
+    buyer_details: InvoiceBuyerDetails
+    line_items: list[InvoiceLineItem]
+    notes: str | None = None
+    payment_terms: str | None = None
+
+
+class InvoiceResponse(BaseModel):
+    """Schema for invoice response."""
+
+    model_config = ConfigDict(from_attributes=True)
+
+    id: int
+    vendor_id: int
+    order_id: int | None
+
+    invoice_number: str
+    invoice_date: datetime
+    status: str
+
+    seller_details: dict
+    buyer_details: dict
+    line_items: list[dict]
+
+    vat_regime: str
+    destination_country: str | None
+    vat_rate: Decimal
+    vat_rate_label: str | None
+
+    currency: str
+    subtotal_cents: int
+    vat_amount_cents: int
+    total_cents: int
+
+    payment_terms: str | None
+    bank_details: dict | None
+    footer_text: str | None
+
+    pdf_generated_at: datetime | None
+    pdf_path: str | None
+
+    notes: str | None
+
+    created_at: datetime
+    updated_at: datetime
+
+    @property
+    def subtotal(self) -> float:
+        return self.subtotal_cents / 100
+
+    @property
+    def vat_amount(self) -> float:
+        return self.vat_amount_cents / 100
+
+    @property
+    def total(self) -> float:
+        return self.total_cents / 100
+
+
+class InvoiceListResponse(BaseModel):
+    """Schema for invoice list response (summary)."""
+
+    model_config = ConfigDict(from_attributes=True)
+
+    id: int
+    invoice_number: str
+    invoice_date: datetime
+    status: str
+    currency: str
+    total_cents: int
+    order_id: int | None
+
+    # Buyer name for display
+    buyer_name: str | None = None
+
+    @property
+    def total(self) -> float:
+        return self.total_cents / 100
+
+
+class InvoiceStatusUpdate(BaseModel):
+    """Schema for updating invoice status."""
+
+    status: str = Field(..., pattern="^(draft|issued|paid|cancelled)$")
+
+
+# ============================================================================
+# Paginated Response
+# ============================================================================
+
+
+class InvoiceListPaginatedResponse(BaseModel):
+    """Paginated invoice list response."""
+
+    items: list[InvoiceListResponse]
+    total: int
+    page: int
+    per_page: int
+    pages: int
--- a/models/schema/subscription.py
+++ b/models/schema/subscription.py
@@ -0,0 +1,193 @@
+# models/schema/subscription.py
+"""
+Pydantic schemas for subscription operations.
+
+Supports subscription management and tier limit checks.
+"""
+
+from datetime import datetime
+
+from pydantic import BaseModel, ConfigDict, Field
+
+
+# ============================================================================
+# Tier Information Schemas
+# ============================================================================
+
+
+class TierFeatures(BaseModel):
+    """Features included in a tier."""
+
+    letzshop_sync: bool = True
+    inventory_basic: bool = True
+    inventory_locations: bool = False
+    inventory_purchase_orders: bool = False
+    invoice_lu: bool = True
+    invoice_eu_vat: bool = False
+    invoice_bulk: bool = False
+    customer_view: bool = True
+    customer_export: bool = False
+    analytics_dashboard: bool = False
+    accounting_export: bool = False
+    api_access: bool = False
+    automation_rules: bool = False
+    team_roles: bool = False
+    white_label: bool = False
+    multi_vendor: bool = False
+    custom_integrations: bool = False
+    sla_guarantee: bool = False
+    dedicated_support: bool = False
+
+
+class TierLimits(BaseModel):
+    """Limits for a subscription tier."""
+
+    orders_per_month: int | None = Field(None, description="None = unlimited")
+    products_limit: int | None = Field(None, description="None = unlimited")
+    team_members: int | None = Field(None, description="None = unlimited")
+    order_history_months: int | None = Field(None, description="None = unlimited")
+
+
+class TierInfo(BaseModel):
+    """Full tier information."""
+
+    code: str
+    name: str
+    price_monthly_cents: int
+    price_annual_cents: int | None
+    limits: TierLimits
+    features: list[str]
+
+
+# ============================================================================
+# Subscription Schemas
+# ============================================================================
+
+
+class SubscriptionCreate(BaseModel):
+    """Schema for creating a subscription (admin/internal use)."""
+
+    tier: str = Field(default="essential", pattern="^(essential|professional|business|enterprise)$")
+    is_annual: bool = False
+    trial_days: int = Field(default=14, ge=0, le=30)
+
+
+class SubscriptionUpdate(BaseModel):
+    """Schema for updating a subscription."""
+
+    tier: str | None = Field(None, pattern="^(essential|professional|business|enterprise)$")
+    status: str | None = Field(None, pattern="^(trial|active|past_due|cancelled|expired)$")
+    is_annual: bool | None = None
+    custom_orders_limit: int | None = None
+    custom_products_limit: int | None = None
+    custom_team_limit: int | None = None
+
+
+class SubscriptionResponse(BaseModel):
+    """Schema for subscription response."""
+
+    model_config = ConfigDict(from_attributes=True)
+
+    id: int
+    vendor_id: int
+    tier: str
+    status: str
+
+    period_start: datetime
+    period_end: datetime
+    is_annual: bool
+
+    trial_ends_at: datetime | None
+    orders_this_period: int
+    orders_limit_reached_at: datetime | None
+
+    # Effective limits (with custom overrides applied)
+    orders_limit: int | None
+    products_limit: int | None
+    team_members_limit: int | None
+
+    # Computed properties
+    is_active: bool
+    is_trial: bool
+    trial_days_remaining: int | None
+
+    created_at: datetime
+    updated_at: datetime
+
+
+class SubscriptionUsage(BaseModel):
+    """Current subscription usage statistics."""
+
+    orders_used: int
+    orders_limit: int | None
+    orders_remaining: int | None
+    orders_percent_used: float | None
+
+    products_used: int
+    products_limit: int | None
+    products_remaining: int | None
+    products_percent_used: float | None
+
+    team_members_used: int
+    team_members_limit: int | None
+    team_members_remaining: int | None
+    team_members_percent_used: float | None
+
+
+class SubscriptionStatusResponse(BaseModel):
+    """Subscription status with usage and limits."""
+
+    subscription: SubscriptionResponse
+    usage: SubscriptionUsage
+    tier_info: TierInfo
+
+
+# ============================================================================
+# Limit Check Schemas
+# ============================================================================
+
+
+class LimitCheckResult(BaseModel):
+    """Result of a limit check."""
+
+    allowed: bool
+    limit: int | None
+    current: int
+    remaining: int | None
+    message: str | None = None
+
+
+class CanCreateOrderResponse(BaseModel):
+    """Response for order creation check."""
+
+    allowed: bool
+    orders_this_period: int
+    orders_limit: int | None
+    message: str | None = None
+
+
+class CanAddProductResponse(BaseModel):
+    """Response for product addition check."""
+
+    allowed: bool
+    products_count: int
+    products_limit: int | None
+    message: str | None = None
+
+
+class CanAddTeamMemberResponse(BaseModel):
+    """Response for team member addition check."""
+
+    allowed: bool
+    team_count: int
+    team_limit: int | None
+    message: str | None = None
+
+
+class FeatureCheckResponse(BaseModel):
+    """Response for feature check."""
+
+    feature: str
+    enabled: bool
+    tier_required: str | None = None
+    message: str | None = None
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,5 +22,8 @@ python-multipart==0.0.20
 pandas==2.2.3
 requests==2.32.3

+# PDF generation
+weasyprint==62.3
+
 # Environment and configuration
 python-dotenv==1.0.1