diff --git a/app/api/v1/admin/__init__.py b/app/api/v1/admin/__init__.py
index 89ad2461..a487b5f2 100644
--- a/app/api/v1/admin/__init__.py
+++ b/app/api/v1/admin/__init__.py
@@ -61,6 +61,7 @@ from . import (
     media,
     menu_config,
     messages,
+    modules,
     monitoring,
     notifications,
     order_item_exceptions,
@@ -125,6 +126,9 @@ router.include_router(platforms.router, tags=["admin-platforms"])
 # Include menu configuration endpoints (super admin only)
 router.include_router(menu_config.router, tags=["admin-menu-config"])
 
+# Include module management endpoints (super admin only)
+router.include_router(modules.router, tags=["admin-modules"])
+
 
 # ============================================================================
 # User Management
diff --git a/app/api/v1/admin/modules.py b/app/api/v1/admin/modules.py
new file mode 100644
index 00000000..cc291903
--- /dev/null
+++ b/app/api/v1/admin/modules.py
@@ -0,0 +1,399 @@
+# app/api/v1/admin/modules.py
+"""
+Admin API endpoints for Platform Module Management.
+
+Provides module enablement/disablement for platforms:
+- GET /modules - List all available modules
+- GET /modules/platforms/{platform_id} - Get modules for a platform
+- PUT /modules/platforms/{platform_id} - Update enabled modules
+- POST /modules/platforms/{platform_id}/enable - Enable a module
+- POST /modules/platforms/{platform_id}/disable - Disable a module
+
+All endpoints require super admin access.
+"""
+
+import logging
+
+from fastapi import APIRouter, Depends, Path
+from pydantic import BaseModel, Field
+from sqlalchemy.orm import Session
+
+from app.api.deps import get_current_super_admin, get_db
+from app.modules.registry import MODULES, get_core_module_codes
+from app.modules.service import module_service
+from app.services.platform_service import platform_service
+from models.database.user import User
+
+logger = logging.getLogger(__name__)
+router = APIRouter(prefix="/modules")
+
+
+# =============================================================================
+# Pydantic Schemas
+# =============================================================================
+
+
+class ModuleResponse(BaseModel):
+    """Module definition response."""
+
+    code: str
+    name: str
+    description: str
+    is_core: bool
+    is_enabled: bool
+    requires: list[str] = Field(default_factory=list)
+    features: list[str] = Field(default_factory=list)
+    menu_items_admin: list[str] = Field(default_factory=list)
+    menu_items_vendor: list[str] = Field(default_factory=list)
+    dependent_modules: list[str] = Field(default_factory=list)
+
+
+class ModuleListResponse(BaseModel):
+    """Response for module list."""
+
+    modules: list[ModuleResponse]
+    total: int
+    enabled: int
+    disabled: int
+
+
+class PlatformModulesResponse(BaseModel):
+    """Response for platform module configuration."""
+
+    platform_id: int
+    platform_code: str
+    platform_name: str
+    modules: list[ModuleResponse]
+    total: int
+    enabled: int
+    disabled: int
+
+
+class EnableModulesRequest(BaseModel):
+    """Request to set enabled modules."""
+
+    module_codes: list[str] = Field(..., description="List of module codes to enable")
+
+
+class ToggleModuleRequest(BaseModel):
+    """Request to enable/disable a single module."""
+
+    module_code: str = Field(..., description="Module code to toggle")
+
+
+# =============================================================================
+# Helper Functions
+# =============================================================================
+
+
+def _get_dependent_modules(module_code: str) -> list[str]:
+    """Get modules that depend on a given module."""
+    dependents = []
+    for code, module in MODULES.items():
+        if module_code in module.requires:
+            dependents.append(code)
+    return dependents
+
+
+def _build_module_response(
+    code: str,
+    is_enabled: bool,
+) -> ModuleResponse:
+    """Build ModuleResponse from module code."""
+    from models.database.admin_menu_config import FrontendType
+
+    module = MODULES.get(code)
+    if not module:
+        raise ValueError(f"Unknown module: {code}")
+
+    return ModuleResponse(
+        code=module.code,
+        name=module.name,
+        description=module.description,
+        is_core=module.is_core,
+        is_enabled=is_enabled,
+        requires=module.requires,
+        features=module.features,
+        menu_items_admin=module.get_menu_items(FrontendType.ADMIN),
+        menu_items_vendor=module.get_menu_items(FrontendType.VENDOR),
+        dependent_modules=_get_dependent_modules(module.code),
+    )
+
+
+# =============================================================================
+# API Endpoints
+# =============================================================================
+
+
+@router.get("", response_model=ModuleListResponse)
+async def list_all_modules(
+    current_user: User = Depends(get_current_super_admin),
+):
+    """
+    List all available modules.
+
+    Returns all module definitions with their metadata.
+    Super admin only.
+    """
+    modules = []
+    for code in MODULES.keys():
+        # All modules shown as enabled in the global list
+        modules.append(_build_module_response(code, is_enabled=True))
+
+    # Sort: core first, then alphabetically
+    modules.sort(key=lambda m: (not m.is_core, m.name))
+
+    logger.info(f"[MODULES] Super admin {current_user.email} listed all modules")
+
+    return ModuleListResponse(
+        modules=modules,
+        total=len(modules),
+        enabled=len(modules),
+        disabled=0,
+    )
+
+
+@router.get("/platforms/{platform_id}", response_model=PlatformModulesResponse)
+async def get_platform_modules(
+    platform_id: int = Path(..., description="Platform ID"),
+    db: Session = Depends(get_db),
+    current_user: User = Depends(get_current_super_admin),
+):
+    """
+    Get module configuration for a platform.
+
+    Returns all modules with their enablement status for the platform.
+    Super admin only.
+    """
+    # Verify platform exists
+    platform = platform_service.get_platform_by_id(db, platform_id)
+
+    # Get enabled module codes for this platform
+    enabled_codes = module_service.get_enabled_module_codes(db, platform_id)
+
+    modules = []
+    for code in MODULES.keys():
+        is_enabled = code in enabled_codes
+        modules.append(_build_module_response(code, is_enabled))
+
+    # Sort: core first, then alphabetically
+    modules.sort(key=lambda m: (not m.is_core, m.name))
+
+    enabled_count = sum(1 for m in modules if m.is_enabled)
+
+    logger.info(
+        f"[MODULES] Super admin {current_user.email} fetched modules "
+        f"for platform {platform.code} ({enabled_count}/{len(modules)} enabled)"
+    )
+
+    return PlatformModulesResponse(
+        platform_id=platform.id,
+        platform_code=platform.code,
+        platform_name=platform.name,
+        modules=modules,
+        total=len(modules),
+        enabled=enabled_count,
+        disabled=len(modules) - enabled_count,
+    )
+
+
+@router.put("/platforms/{platform_id}", response_model=PlatformModulesResponse)
+async def update_platform_modules(
+    update_data: EnableModulesRequest,
+    platform_id: int = Path(..., description="Platform ID"),
+    db: Session = Depends(get_db),
+    current_user: User = Depends(get_current_super_admin),
+):
+    """
+    Update enabled modules for a platform.
+
+    Sets the list of enabled modules. Core modules are automatically included.
+    Dependencies are automatically resolved.
+    Super admin only.
+    """
+    # Verify platform exists
+    platform = platform_service.get_platform_by_id(db, platform_id)
+
+    # Update enabled modules
+    module_service.set_enabled_modules(db, platform_id, update_data.module_codes)
+    db.commit()
+
+    # Get updated module list
+    enabled_codes = module_service.get_enabled_module_codes(db, platform_id)
+
+    modules = []
+    for code in MODULES.keys():
+        is_enabled = code in enabled_codes
+        modules.append(_build_module_response(code, is_enabled))
+
+    modules.sort(key=lambda m: (not m.is_core, m.name))
+    enabled_count = sum(1 for m in modules if m.is_enabled)
+
+    logger.info(
+        f"[MODULES] Super admin {current_user.email} updated modules "
+        f"for platform {platform.code}: {sorted(update_data.module_codes)}"
+    )
+
+    return PlatformModulesResponse(
+        platform_id=platform.id,
+        platform_code=platform.code,
+        platform_name=platform.name,
+        modules=modules,
+        total=len(modules),
+        enabled=enabled_count,
+        disabled=len(modules) - enabled_count,
+    )
+
+
+@router.post("/platforms/{platform_id}/enable")
+async def enable_module(
+    request: ToggleModuleRequest,
+    platform_id: int = Path(..., description="Platform ID"),
+    db: Session = Depends(get_db),
+    current_user: User = Depends(get_current_super_admin),
+):
+    """
+    Enable a single module for a platform.
+
+    Also enables required dependencies.
+    Super admin only.
+    """
+    # Verify platform exists
+    platform = platform_service.get_platform_by_id(db, platform_id)
+
+    # Validate module code
+    if request.module_code not in MODULES:
+        from app.exceptions import BadRequestException
+
+        raise BadRequestException(f"Unknown module: {request.module_code}")
+
+    # Enable module
+    success = module_service.enable_module(db, platform_id, request.module_code)
+    if success:
+        db.commit()
+
+    # Check what dependencies were also enabled
+    module = MODULES[request.module_code]
+    enabled_deps = module.requires if module.requires else []
+
+    logger.info(
+        f"[MODULES] Super admin {current_user.email} enabled module "
+        f"'{request.module_code}' for platform {platform.code}"
+    )
+
+    return {
+        "success": success,
+        "message": f"Module '{request.module_code}' enabled",
+        "also_enabled": enabled_deps,
+    }
+
+
+@router.post("/platforms/{platform_id}/disable")
+async def disable_module(
+    request: ToggleModuleRequest,
+    platform_id: int = Path(..., description="Platform ID"),
+    db: Session = Depends(get_db),
+    current_user: User = Depends(get_current_super_admin),
+):
+    """
+    Disable a single module for a platform.
+
+    Core modules cannot be disabled.
+    Also disables modules that depend on this one.
+    Super admin only.
+    """
+    # Verify platform exists
+    platform = platform_service.get_platform_by_id(db, platform_id)
+
+    # Validate module code
+    if request.module_code not in MODULES:
+        from app.exceptions import BadRequestException
+
+        raise BadRequestException(f"Unknown module: {request.module_code}")
+
+    # Check if core module
+    if request.module_code in get_core_module_codes():
+        from app.exceptions import BadRequestException
+
+        raise BadRequestException(f"Cannot disable core module: {request.module_code}")
+
+    # Get dependent modules before disabling
+    dependents = _get_dependent_modules(request.module_code)
+
+    # Disable module
+    success = module_service.disable_module(db, platform_id, request.module_code)
+    if success:
+        db.commit()
+
+    logger.info(
+        f"[MODULES] Super admin {current_user.email} disabled module "
+        f"'{request.module_code}' for platform {platform.code}"
+    )
+
+    return {
+        "success": success,
+        "message": f"Module '{request.module_code}' disabled",
+        "also_disabled": dependents if dependents else [],
+    }
+
+
+@router.post("/platforms/{platform_id}/enable-all")
+async def enable_all_modules(
+    platform_id: int = Path(..., description="Platform ID"),
+    db: Session = Depends(get_db),
+    current_user: User = Depends(get_current_super_admin),
+):
+    """
+    Enable all modules for a platform.
+
+    Super admin only.
+    """
+    # Verify platform exists
+    platform = platform_service.get_platform_by_id(db, platform_id)
+
+    # Enable all modules
+    all_codes = list(MODULES.keys())
+    module_service.set_enabled_modules(db, platform_id, all_codes)
+    db.commit()
+
+    logger.info(
+        f"[MODULES] Super admin {current_user.email} enabled all modules "
+        f"for platform {platform.code}"
+    )
+
+    return {
+        "success": True,
+        "message": "All modules enabled",
+        "enabled_count": len(all_codes),
+    }
+
+
+@router.post("/platforms/{platform_id}/disable-optional")
+async def disable_optional_modules(
+    platform_id: int = Path(..., description="Platform ID"),
+    db: Session = Depends(get_db),
+    current_user: User = Depends(get_current_super_admin),
+):
+    """
+    Disable all optional modules for a platform, keeping only core modules.
+
+    Super admin only.
+    """
+    # Verify platform exists
+    platform = platform_service.get_platform_by_id(db, platform_id)
+
+    # Enable only core modules
+    core_codes = list(get_core_module_codes())
+    module_service.set_enabled_modules(db, platform_id, core_codes)
+    db.commit()
+
+    logger.info(
+        f"[MODULES] Super admin {current_user.email} disabled optional modules "
+        f"for platform {platform.code} (kept {len(core_codes)} core modules)"
+    )
+
+    return {
+        "success": True,
+        "message": "Optional modules disabled, core modules kept",
+        "core_modules": core_codes,
+    }
diff --git a/app/routes/admin_pages.py b/app/routes/admin_pages.py
index 1c6193e5..80be812d 100644
--- a/app/routes/admin_pages.py
+++ b/app/routes/admin_pages.py
@@ -48,11 +48,12 @@ from fastapi.templating import Jinja2Templates
 from sqlalchemy.orm import Session
 
 from app.api.deps import (
-    get_current_admin_from_cookie_or_header,
     get_current_admin_optional,
     get_db,
+    require_menu_access,
 )
 from app.core.config import settings
+from models.database.admin_menu_config import FrontendType
 from models.database.user import User
 
 router = APIRouter()
@@ -132,7 +133,7 @@ async def admin_select_platform_page(
 @router.get("/dashboard", response_class=HTMLResponse, include_in_schema=False)
 async def admin_dashboard_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("dashboard", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -156,7 +157,7 @@ async def admin_dashboard_page(
 @router.get("/companies", response_class=HTMLResponse, include_in_schema=False)
 async def admin_companies_list_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("companies", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -175,7 +176,7 @@ async def admin_companies_list_page(
 @router.get("/companies/create", response_class=HTMLResponse, include_in_schema=False)
 async def admin_company_create_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("companies", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -196,7 +197,7 @@ async def admin_company_create_page(
 async def admin_company_detail_page(
     request: Request,
     company_id: int = Path(..., description="Company ID"),
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("companies", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -218,7 +219,7 @@ async def admin_company_detail_page(
 async def admin_company_edit_page(
     request: Request,
     company_id: int = Path(..., description="Company ID"),
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("companies", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -242,7 +243,7 @@ async def admin_company_edit_page(
 @router.get("/vendors", response_class=HTMLResponse, include_in_schema=False)
 async def admin_vendors_list_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("vendors", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -261,7 +262,7 @@ async def admin_vendors_list_page(
 @router.get("/vendors/create", response_class=HTMLResponse, include_in_schema=False)
 async def admin_vendor_create_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("vendors", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -282,7 +283,7 @@ async def admin_vendor_create_page(
 async def admin_vendor_detail_page(
     request: Request,
     vendor_code: str = Path(..., description="Vendor code"),
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("vendors", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -305,7 +306,7 @@ async def admin_vendor_detail_page(
 async def admin_vendor_edit_page(
     request: Request,
     vendor_code: str = Path(..., description="Vendor code"),
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("vendors", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -334,7 +335,7 @@ async def admin_vendor_edit_page(
 async def admin_vendor_domains_page(
     request: Request,
     vendor_code: str = Path(..., description="Vendor code"),
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("vendors", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -359,7 +360,7 @@ async def admin_vendor_domains_page(
 @router.get("/vendor-themes", response_class=HTMLResponse, include_in_schema=False)
 async def admin_vendor_themes_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("vendor-themes", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -381,7 +382,7 @@ async def admin_vendor_themes_page(
 async def admin_vendor_theme_page(
     request: Request,
     vendor_code: str = Path(..., description="Vendor code"),
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("vendor-themes", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -406,18 +407,14 @@ async def admin_vendor_theme_page(
 @router.get("/admin-users", response_class=HTMLResponse, include_in_schema=False)
 async def admin_users_list_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("admin-users", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
     Render admin users management page.
     Shows list of all admin users (super admins and platform admins).
-    Super admin only.
+    Super admin only (menu is in super_admin_only section).
     """
-    from fastapi import HTTPException
-
-    if not current_user.is_super_admin:
-        raise HTTPException(status_code=403, detail="Super admin access required")
 
     return templates.TemplateResponse(
         "admin/admin-users.html",
@@ -431,17 +428,13 @@ async def admin_users_list_page(
 @router.get("/admin-users/create", response_class=HTMLResponse, include_in_schema=False)
 async def admin_user_create_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("admin-users", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
     Render admin user creation form.
-    Super admin only.
+    Super admin only (menu is in super_admin_only section).
     """
-    from fastapi import HTTPException
-
-    if not current_user.is_super_admin:
-        raise HTTPException(status_code=403, detail="Super admin access required")
 
     return templates.TemplateResponse(
         "admin/user-create.html",
@@ -458,17 +451,13 @@ async def admin_user_create_page(
 async def admin_user_detail_page(
     request: Request,
     user_id: int = Path(..., description="User ID"),
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("admin-users", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
     Render admin user detail view.
-    Super admin only.
+    Super admin only (menu is in super_admin_only section).
     """
-    from fastapi import HTTPException
-
-    if not current_user.is_super_admin:
-        raise HTTPException(status_code=403, detail="Super admin access required")
 
     return templates.TemplateResponse(
         "admin/admin-user-detail.html",
@@ -486,17 +475,13 @@ async def admin_user_detail_page(
 async def admin_user_edit_page(
     request: Request,
     user_id: int = Path(..., description="User ID"),
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("admin-users", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
     Render admin user edit form.
-    Super admin only.
+    Super admin only (menu is in super_admin_only section).
     """
-    from fastapi import HTTPException
-
-    if not current_user.is_super_admin:
-        raise HTTPException(status_code=403, detail="Super admin access required")
 
     return templates.TemplateResponse(
         "admin/admin-user-edit.html",
@@ -557,7 +542,7 @@ async def admin_user_edit_page_redirect(user_id: int = Path(..., description="Us
 @router.get("/customers", response_class=HTMLResponse, include_in_schema=False)
 async def admin_customers_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("customers", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -581,7 +566,7 @@ async def admin_customers_page(
 @router.get("/notifications", response_class=HTMLResponse, include_in_schema=False)
 async def admin_notifications_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("notifications", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -605,7 +590,7 @@ async def admin_notifications_page(
 @router.get("/email-templates", response_class=HTMLResponse, include_in_schema=False)
 async def admin_email_templates_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("email-templates", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -629,7 +614,7 @@ async def admin_email_templates_page(
 @router.get("/messages", response_class=HTMLResponse, include_in_schema=False)
 async def admin_messages_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("messages", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -653,7 +638,7 @@ async def admin_messages_page(
 async def admin_conversation_detail_page(
     request: Request,
     conversation_id: int = Path(..., description="Conversation ID"),
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("messages", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -678,7 +663,7 @@ async def admin_conversation_detail_page(
 @router.get("/inventory", response_class=HTMLResponse, include_in_schema=False)
 async def admin_inventory_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("inventory", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -702,7 +687,7 @@ async def admin_inventory_page(
 @router.get("/orders", response_class=HTMLResponse, include_in_schema=False)
 async def admin_orders_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("orders", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -726,7 +711,7 @@ async def admin_orders_page(
 @router.get("/imports", response_class=HTMLResponse, include_in_schema=False)
 async def admin_imports_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("imports", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -745,7 +730,7 @@ async def admin_imports_page(
 @router.get("/background-tasks", response_class=HTMLResponse, include_in_schema=False)
 async def admin_background_tasks_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("background-tasks", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -765,7 +750,7 @@ async def admin_background_tasks_page(
 @router.get("/marketplace", response_class=HTMLResponse, include_in_schema=False)
 async def admin_marketplace_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("marketplace-letzshop", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -791,7 +776,7 @@ async def admin_marketplace_page(
 )
 async def admin_marketplace_letzshop_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("marketplace-letzshop", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -814,7 +799,7 @@ async def admin_marketplace_letzshop_page(
 async def admin_letzshop_order_detail_page(
     request: Request,
     order_id: int = Path(..., description="Letzshop order ID"),
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("marketplace-letzshop", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -840,7 +825,7 @@ async def admin_letzshop_order_detail_page(
 async def admin_letzshop_product_detail_page(
     request: Request,
     product_id: int = Path(..., description="Marketplace Product ID"),
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("marketplace-letzshop", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -870,7 +855,7 @@ async def admin_letzshop_product_detail_page(
 )
 async def admin_letzshop_vendor_directory_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("marketplace-letzshop", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -900,7 +885,7 @@ async def admin_letzshop_vendor_directory_page(
 )
 async def admin_marketplace_products_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("marketplace-letzshop", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -924,7 +909,7 @@ async def admin_marketplace_products_page(
 async def admin_marketplace_product_detail_page(
     request: Request,
     product_id: int = Path(..., description="Marketplace Product ID"),
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("marketplace-letzshop", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -945,7 +930,7 @@ async def admin_marketplace_product_detail_page(
 @router.get("/vendor-products", response_class=HTMLResponse, include_in_schema=False)
 async def admin_vendor_products_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("vendor-products", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -964,7 +949,7 @@ async def admin_vendor_products_page(
 @router.get("/vendor-products/create", response_class=HTMLResponse, include_in_schema=False)
 async def admin_vendor_product_create_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("vendor-products", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -988,7 +973,7 @@ async def admin_vendor_product_create_page(
 async def admin_vendor_product_detail_page(
     request: Request,
     product_id: int = Path(..., description="Vendor Product ID"),
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("vendor-products", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1013,7 +998,7 @@ async def admin_vendor_product_detail_page(
 async def admin_vendor_product_edit_page(
     request: Request,
     product_id: int = Path(..., description="Vendor Product ID"),
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("vendor-products", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1038,7 +1023,7 @@ async def admin_vendor_product_edit_page(
 @router.get("/subscription-tiers", response_class=HTMLResponse, include_in_schema=False)
 async def admin_subscription_tiers_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("subscription-tiers", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1057,7 +1042,7 @@ async def admin_subscription_tiers_page(
 @router.get("/subscriptions", response_class=HTMLResponse, include_in_schema=False)
 async def admin_subscriptions_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("subscriptions", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1076,7 +1061,7 @@ async def admin_subscriptions_page(
 @router.get("/billing-history", response_class=HTMLResponse, include_in_schema=False)
 async def admin_billing_history_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("billing-history", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1100,7 +1085,7 @@ async def admin_billing_history_page(
 @router.get("/settings", response_class=HTMLResponse, include_in_schema=False)
 async def admin_settings_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("settings", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1116,10 +1101,33 @@ async def admin_settings_page(
     )
 
 
+@router.get("/my-menu", response_class=HTMLResponse, include_in_schema=False)
+async def admin_my_menu_config(
+    request: Request,
+    current_user: User = Depends(require_menu_access("my-menu", FrontendType.ADMIN)),
+    db: Session = Depends(get_db),
+):
+    """
+    Render personal menu configuration page for super admins.
+    Allows super admins to customize their own sidebar menu.
+    """
+    # Only super admins can configure their own menu
+    if not current_user.is_super_admin:
+        return RedirectResponse(url="/admin/settings", status_code=302)
+
+    return templates.TemplateResponse(
+        "admin/my-menu-config.html",
+        {
+            "request": request,
+            "user": current_user,
+        },
+    )
+
+
 @router.get("/logs", response_class=HTMLResponse, include_in_schema=False)
 async def admin_logs_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("logs", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1143,7 +1151,7 @@ async def admin_logs_page(
 @router.get("/platforms", response_class=HTMLResponse, include_in_schema=False)
 async def admin_platforms_list(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("platforms", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1165,7 +1173,7 @@ async def admin_platforms_list(
 async def admin_platform_detail(
     request: Request,
     platform_code: str = Path(..., description="Platform code (oms, loyalty, etc.)"),
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("platforms", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1190,7 +1198,7 @@ async def admin_platform_detail(
 async def admin_platform_edit(
     request: Request,
     platform_code: str = Path(..., description="Platform code"),
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("platforms", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1207,6 +1215,66 @@ async def admin_platform_edit(
     )
 
 
+@router.get(
+    "/platforms/{platform_code}/menu-config",
+    response_class=HTMLResponse,
+    include_in_schema=False,
+)
+async def admin_platform_menu_config(
+    request: Request,
+    platform_code: str = Path(..., description="Platform code"),
+    current_user: User = Depends(require_menu_access("platforms", FrontendType.ADMIN)),
+    db: Session = Depends(get_db),
+):
+    """
+    Render platform menu configuration page.
+    Super admin only - allows configuring which menu items are visible
+    for the platform's admin and vendor frontends.
+    """
+    # Only super admins can access menu configuration
+    if not current_user.is_super_admin:
+        return RedirectResponse(url=f"/admin/platforms/{platform_code}", status_code=302)
+
+    return templates.TemplateResponse(
+        "admin/platform-menu-config.html",
+        {
+            "request": request,
+            "user": current_user,
+            "platform_code": platform_code,
+        },
+    )
+
+
+@router.get(
+    "/platforms/{platform_code}/modules",
+    response_class=HTMLResponse,
+    include_in_schema=False,
+)
+async def admin_platform_modules(
+    request: Request,
+    platform_code: str = Path(..., description="Platform code"),
+    current_user: User = Depends(require_menu_access("platforms", FrontendType.ADMIN)),
+    db: Session = Depends(get_db),
+):
+    """
+    Render platform module configuration page.
+    Super admin only - allows enabling/disabling feature modules
+    for the platform.
+    """
+    # Only super admins can access module configuration
+    if not current_user.is_super_admin:
+        return RedirectResponse(url=f"/admin/platforms/{platform_code}", status_code=302)
+
+    return templates.TemplateResponse(
+        "admin/platform-modules.html",
+        {
+            "request": request,
+            "user": current_user,
+            "platform_code": platform_code,
+        },
+    )
+
+
 # ============================================================================
 # CONTENT MANAGEMENT SYSTEM (CMS) ROUTES
 # ============================================================================
@@ -1215,7 +1283,7 @@ async def admin_platform_edit(
 @router.get("/platform-homepage", include_in_schema=False)
 async def admin_platform_homepage_manager(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("platforms", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1225,14 +1293,13 @@ async def admin_platform_homepage_manager(
     - /admin/platforms → Select platform → Homepage button
     - Or directly: /admin/content-pages?platform_code={code}&slug=home
     """
-    from starlette.responses import RedirectResponse
     return RedirectResponse(url="/admin/platforms", status_code=302)
 
 
 @router.get("/content-pages", response_class=HTMLResponse, include_in_schema=False)
 async def admin_content_pages_list(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("content-pages", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1253,7 +1320,7 @@ async def admin_content_pages_list(
 )
 async def admin_content_page_create(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("content-pages", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1278,7 +1345,7 @@ async def admin_content_page_create(
 async def admin_content_page_edit(
     request: Request,
     page_id: int = Path(..., description="Content page ID"),
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("content-pages", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1303,7 +1370,7 @@ async def admin_content_page_edit(
 @router.get("/components", response_class=HTMLResponse, include_in_schema=False)
 async def admin_components_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("components", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1322,7 +1389,7 @@ async def admin_components_page(
 @router.get("/icons", response_class=HTMLResponse, include_in_schema=False)
 async def admin_icons_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("icons", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1341,7 +1408,7 @@ async def admin_icons_page(
 @router.get("/testing", response_class=HTMLResponse, include_in_schema=False)
 async def admin_testing_dashboard(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("testing", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1360,7 +1427,7 @@ async def admin_testing_dashboard(
 @router.get("/testing-hub", response_class=HTMLResponse, include_in_schema=False)
 async def admin_testing_hub(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("testing", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1379,7 +1446,7 @@ async def admin_testing_hub(
 @router.get("/test/auth-flow", response_class=HTMLResponse, include_in_schema=False)
 async def admin_test_auth_flow(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("testing", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1402,7 +1469,7 @@ async def admin_test_auth_flow(
 )
 async def admin_test_vendors_users_migration(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("testing", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1426,7 +1493,7 @@ async def admin_test_vendors_users_migration(
 @router.get("/code-quality", response_class=HTMLResponse, include_in_schema=False)
 async def admin_code_quality_dashboard(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("code-quality", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1447,7 +1514,7 @@ async def admin_code_quality_dashboard(
 )
 async def admin_code_quality_violations(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("code-quality", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1471,7 +1538,7 @@ async def admin_code_quality_violations(
 async def admin_code_quality_violation_detail(
     request: Request,
     violation_id: int = Path(..., description="Violation ID"),
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("code-quality", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1496,7 +1563,7 @@ async def admin_code_quality_violation_detail(
 @router.get("/platform-health", response_class=HTMLResponse, include_in_schema=False)
 async def admin_platform_health(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("platform-health", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
@@ -1520,7 +1587,7 @@ async def admin_platform_health(
 @router.get("/features", response_class=HTMLResponse, include_in_schema=False)
 async def admin_features_page(
     request: Request,
-    current_user: User = Depends(get_current_admin_from_cookie_or_header),
+    current_user: User = Depends(require_menu_access("subscription-tiers", FrontendType.ADMIN)),
     db: Session = Depends(get_db),
 ):
     """
diff --git a/app/templates/admin/platform-detail.html b/app/templates/admin/platform-detail.html
index 0d8c42fb..bb38dc97 100644
--- a/app/templates/admin/platform-detail.html
+++ b/app/templates/admin/platform-detail.html
@@ -90,6 +90,37 @@
         </div>
     </div>
 
+    <!-- Super Admin Actions (Menu Configuration) -->
+    <div x-show="isSuperAdmin" class="bg-white dark:bg-gray-800 rounded-lg shadow-md p-6">
+        <h3 class="text-lg font-semibold text-gray-900 dark:text-white mb-4">
+            <span class="inline-flex items-center">
+                Super Admin
+                <span class="ml-2 px-2 py-0.5 text-xs font-medium rounded bg-purple-100 text-purple-800 dark:bg-purple-900 dark:text-purple-200">Admin Only</span>
+            </span>
+        </h3>
+        <div class="grid grid-cols-1 md:grid-cols-4 gap-4">
+            <!-- Module Configuration -->
+            <a :href="`/admin/platforms/${platformCode}/modules`"
+               class="flex items-center p-4 bg-green-50 dark:bg-green-900/20 rounded-lg hover:bg-green-100 dark:hover:bg-green-900/40 transition-colors">
+                <span x-html="$icon('puzzle', 'w-8 h-8 text-green-600 dark:text-green-400')"></span>
+                <div class="ml-3">
+                    <p class="font-semibold text-gray-900 dark:text-white">Module Configuration</p>
+                    <p class="text-sm text-gray-600 dark:text-gray-400">Enable/disable features</p>
+                </div>
+            </a>
+
+            <!-- Menu Configuration -->
+            <a :href="`/admin/platforms/${platformCode}/menu-config`"
+               class="flex items-center p-4 bg-amber-50 dark:bg-amber-900/20 rounded-lg hover:bg-amber-100 dark:hover:bg-amber-900/40 transition-colors">
+                <span x-html="$icon('view-grid', 'w-8 h-8 text-amber-600 dark:text-amber-400')"></span>
+                <div class="ml-3">
+                    <p class="font-semibold text-gray-900 dark:text-white">Menu Configuration</p>
+                    <p class="text-sm text-gray-600 dark:text-gray-400">Admin & vendor menus</p>
+                </div>
+            </a>
+        </div>
+    </div>
+
     <!-- Stats Grid -->
     <div class="grid grid-cols-1 md:grid-cols-4 gap-6">
         <!-- Vendors -->
diff --git a/app/templates/admin/platform-modules.html b/app/templates/admin/platform-modules.html
new file mode 100644
index 00000000..bc7968fb
--- /dev/null
+++ b/app/templates/admin/platform-modules.html
@@ -0,0 +1,252 @@
+{# app/templates/admin/platform-modules.html #}
+{% extends "admin/base.html" %}
+{% from 'shared/macros/alerts.html' import alert_dynamic, error_state %}
+{% from 'shared/macros/headers.html' import page_header %}
+
+{% block title %}Module Configuration{% endblock %}
+
+{% block alpine_data %}adminPlatformModules('{{ platform_code }}'){% endblock %}
+
+{% block content %}
+{{ page_header('Module Configuration', back_url='/admin/platforms/' + platform_code) }}
+
+{{ alert_dynamic(type='success', title='Success', message_var='successMessage', show_condition='successMessage') }}
+{{ error_state('Error', show_condition='error') }}
+
+<!-- Platform Info -->
+<div class="mb-6 p-4 bg-white rounded-lg shadow-xs dark:bg-gray-800">
+    <div class="flex items-center justify-between">
+        <div>
+            <h2 class="text-lg font-semibold text-gray-700 dark:text-gray-200" x-text="platform?.name || 'Loading...'"></h2>
+            <p class="text-sm text-gray-500 dark:text-gray-400">
+                Enable or disable feature modules for this platform. Core modules cannot be disabled.
+            </p>
+        </div>
+        <span class="px-3 py-1 text-sm font-medium rounded-full bg-purple-100 text-purple-800 dark:bg-purple-900 dark:text-purple-200" x-text="platform?.code?.toUpperCase()"></span>
+    </div>
+</div>
+
+<!-- Stats Cards -->
+<div class="grid gap-4 mb-6 md:grid-cols-4">
+    <div class="flex items-center p-4 bg-white rounded-lg shadow-xs dark:bg-gray-800">
+        <div class="p-3 mr-4 text-blue-500 bg-blue-100 rounded-full dark:text-blue-100 dark:bg-blue-500">
+            <span x-html="$icon('puzzle', 'w-5 h-5')"></span>
+        </div>
+        <div>
+            <p class="mb-1 text-sm font-medium text-gray-600 dark:text-gray-400">Total Modules</p>
+            <p class="text-lg font-semibold text-gray-700 dark:text-gray-200" x-text="moduleConfig?.total || 0"></p>
+        </div>
+    </div>
+
+    <div class="flex items-center p-4 bg-white rounded-lg shadow-xs dark:bg-gray-800">
+        <div class="p-3 mr-4 text-green-500 bg-green-100 rounded-full dark:text-green-100 dark:bg-green-500">
+            <span x-html="$icon('check-circle', 'w-5 h-5')"></span>
+        </div>
+        <div>
+            <p class="mb-1 text-sm font-medium text-gray-600 dark:text-gray-400">Enabled</p>
+            <p class="text-lg font-semibold text-gray-700 dark:text-gray-200" x-text="moduleConfig?.enabled || 0"></p>
+        </div>
+    </div>
+
+    <div class="flex items-center p-4 bg-white rounded-lg shadow-xs dark:bg-gray-800">
+        <div class="p-3 mr-4 text-gray-500 bg-gray-100 rounded-full dark:text-gray-100 dark:bg-gray-600">
+            <span x-html="$icon('x-circle', 'w-5 h-5')"></span>
+        </div>
+        <div>
+            <p class="mb-1 text-sm font-medium text-gray-600 dark:text-gray-400">Disabled</p>
+            <p class="text-lg font-semibold text-gray-700 dark:text-gray-200" x-text="moduleConfig?.disabled || 0"></p>
+        </div>
+    </div>
+
+    <div class="flex items-center p-4 bg-white rounded-lg shadow-xs dark:bg-gray-800">
+        <div class="p-3 mr-4 text-purple-500 bg-purple-100 rounded-full dark:text-purple-100 dark:bg-purple-500">
+            <span x-html="$icon('shield', 'w-5 h-5')"></span>
+        </div>
+        <div>
+            <p class="mb-1 text-sm font-medium text-gray-600 dark:text-gray-400">Core Modules</p>
+            <p class="text-lg font-semibold text-gray-700 dark:text-gray-200" x-text="coreModulesCount"></p>
+        </div>
+    </div>
+</div>
+
+<!-- Actions -->
+<div class="mb-4 flex items-center justify-between">
+    <p class="text-sm text-gray-500 dark:text-gray-400">
+        Toggle modules on/off. Dependencies are resolved automatically.
+    </p>
+    <div class="flex gap-2">
+        <button
+            @click="enableAll()"
+            :disabled="saving"
+            class="inline-flex items-center px-4 py-2 text-sm font-medium text-gray-700 bg-white border border-gray-300 rounded-lg hover:bg-gray-50 dark:bg-gray-700 dark:text-gray-300 dark:border-gray-600 dark:hover:bg-gray-600"
+        >
+            <span x-html="$icon('check-circle', 'w-4 h-4 mr-2')"></span>
+            Enable All
+        </button>
+        <button
+            @click="disableOptional()"
+            :disabled="saving"
+            class="inline-flex items-center px-4 py-2 text-sm font-medium text-gray-700 bg-white border border-gray-300 rounded-lg hover:bg-gray-50 dark:bg-gray-700 dark:text-gray-300 dark:border-gray-600 dark:hover:bg-gray-600"
+        >
+            <span x-html="$icon('x-circle', 'w-4 h-4 mr-2')"></span>
+            Core Only
+        </button>
+    </div>
+</div>
+
+<!-- Loading State -->
+<div x-show="loading" class="flex items-center justify-center py-12 bg-white rounded-lg shadow-xs dark:bg-gray-800">
+    <span x-html="$icon('refresh', 'w-8 h-8 animate-spin text-purple-600')"></span>
+    <span class="ml-3 text-gray-500 dark:text-gray-400">Loading module configuration...</span>
+</div>
+
+<!-- Module Groups -->
+<div x-show="!loading" class="space-y-6">
+    <!-- Core Modules -->
+    <div class="bg-white rounded-lg shadow-xs dark:bg-gray-800 overflow-hidden">
+        <div class="px-4 py-3 bg-purple-50 dark:bg-purple-900/20 border-b border-purple-200 dark:border-purple-800">
+            <div class="flex items-center justify-between">
+                <div class="flex items-center">
+                    <span x-html="$icon('shield', 'w-5 h-5 text-purple-600 dark:text-purple-400 mr-2')"></span>
+                    <h3 class="text-sm font-semibold text-purple-800 dark:text-purple-200">Core Modules</h3>
+                    <span class="ml-2 px-2 py-0.5 text-xs font-medium rounded bg-purple-100 text-purple-800 dark:bg-purple-900 dark:text-purple-200">
+                        Always Enabled
+                    </span>
+                </div>
+                <span class="text-xs text-purple-600 dark:text-purple-400" x-text="`${coreModulesCount} modules`"></span>
+            </div>
+        </div>
+        <div class="divide-y divide-gray-100 dark:divide-gray-700">
+            <template x-for="module in coreModules" :key="module.code">
+                <div class="flex items-center justify-between px-4 py-4 hover:bg-gray-50 dark:hover:bg-gray-700/30">
+                    <div class="flex items-center flex-1">
+                        <div class="p-2 mr-3 bg-purple-100 dark:bg-purple-900/30 rounded-lg">
+                            <span x-html="$icon(getModuleIcon(module.code), 'w-5 h-5 text-purple-600 dark:text-purple-400')"></span>
+                        </div>
+                        <div class="flex-1">
+                            <p class="text-sm font-medium text-gray-700 dark:text-gray-200" x-text="module.name"></p>
+                            <p class="text-xs text-gray-500 dark:text-gray-400" x-text="module.description"></p>
+                            <!-- Features -->
+                            <div x-show="module.features?.length > 0" class="mt-1 flex flex-wrap gap-1">
+                                <template x-for="feature in module.features.slice(0, 3)" :key="feature">
+                                    <span class="px-1.5 py-0.5 text-xs rounded bg-gray-100 text-gray-600 dark:bg-gray-700 dark:text-gray-400" x-text="feature"></span>
+                                </template>
+                                <span x-show="module.features?.length > 3" class="text-xs text-gray-400" x-text="`+${module.features.length - 3} more`"></span>
+                            </div>
+                        </div>
+                    </div>
+                    <div class="flex items-center gap-3 ml-4">
+                        <span class="px-2 py-1 text-xs font-medium rounded-full bg-green-100 text-green-800 dark:bg-green-900 dark:text-green-200">
+                            Enabled
+                        </span>
+                    </div>
+                </div>
+            </template>
+        </div>
+    </div>
+
+    <!-- Optional Modules -->
+    <div class="bg-white rounded-lg shadow-xs dark:bg-gray-800 overflow-hidden">
+        <div class="px-4 py-3 bg-gray-50 dark:bg-gray-700/50 border-b border-gray-200 dark:border-gray-700">
+            <div class="flex items-center justify-between">
+                <div class="flex items-center">
+                    <span x-html="$icon('puzzle', 'w-5 h-5 text-gray-600 dark:text-gray-400 mr-2')"></span>
+                    <h3 class="text-sm font-semibold text-gray-700 dark:text-gray-200">Optional Modules</h3>
+                </div>
+                <span class="text-xs text-gray-500 dark:text-gray-400" x-text="`${enabledOptionalCount}/${optionalModules.length} enabled`"></span>
+            </div>
+        </div>
+        <div class="divide-y divide-gray-100 dark:divide-gray-700">
+            <template x-for="module in optionalModules" :key="module.code">
+                <div class="flex items-center justify-between px-4 py-4 hover:bg-gray-50 dark:hover:bg-gray-700/30">
+                    <div class="flex items-center flex-1">
+                        <div class="p-2 mr-3 rounded-lg"
+                             :class="module.is_enabled ? 'bg-green-100 dark:bg-green-900/30' : 'bg-gray-100 dark:bg-gray-700'">
+                            <span x-html="$icon(getModuleIcon(module.code), 'w-5 h-5')"
+                                  :class="module.is_enabled ? 'text-green-600 dark:text-green-400' : 'text-gray-400'"></span>
+                        </div>
+                        <div class="flex-1">
+                            <div class="flex items-center gap-2">
+                                <p class="text-sm font-medium text-gray-700 dark:text-gray-200" x-text="module.name"></p>
+                                <!-- Dependencies Badge -->
+                                <template x-if="module.requires?.length > 0">
+                                    <span class="px-1.5 py-0.5 text-xs rounded bg-amber-100 text-amber-700 dark:bg-amber-900/30 dark:text-amber-400"
+                                          :title="`Requires: ${module.requires.join(', ')}`">
+                                        <span x-html="$icon('link', 'w-3 h-3 inline')"></span>
+                                        <span x-text="module.requires.length"></span>
+                                    </span>
+                                </template>
+                                <!-- Dependents Badge -->
+                                <template x-if="module.dependent_modules?.length > 0">
+                                    <span class="px-1.5 py-0.5 text-xs rounded bg-blue-100 text-blue-700 dark:bg-blue-900/30 dark:text-blue-400"
+                                          :title="`Required by: ${module.dependent_modules.join(', ')}`">
+                                        <span x-html="$icon('users', 'w-3 h-3 inline')"></span>
+                                        <span x-text="module.dependent_modules.length"></span>
+                                    </span>
+                                </template>
+                            </div>
+                            <p class="text-xs text-gray-500 dark:text-gray-400" x-text="module.description"></p>
+                            <!-- Dependencies Info -->
+                            <div x-show="module.requires?.length > 0" class="mt-1">
+                                <span class="text-xs text-amber-600 dark:text-amber-400">
+                                    Requires: <span x-text="module.requires.join(', ')"></span>
+                                </span>
+                            </div>
+                            <!-- Features -->
+                            <div x-show="module.features?.length > 0" class="mt-1 flex flex-wrap gap-1">
+                                <template x-for="feature in module.features.slice(0, 3)" :key="feature">
+                                    <span class="px-1.5 py-0.5 text-xs rounded bg-gray-100 text-gray-600 dark:bg-gray-700 dark:text-gray-400" x-text="feature"></span>
+                                </template>
+                                <span x-show="module.features?.length > 3" class="text-xs text-gray-400" x-text="`+${module.features.length - 3} more`"></span>
+                            </div>
+                        </div>
+                    </div>
+                    <div class="flex items-center gap-3 ml-4">
+                        <!-- Status Badge -->
+                        <span x-show="module.is_enabled"
+                              class="px-2 py-1 text-xs font-medium rounded-full bg-green-100 text-green-800 dark:bg-green-900 dark:text-green-200">
+                            Enabled
+                        </span>
+                        <span x-show="!module.is_enabled"
+                              class="px-2 py-1 text-xs font-medium rounded-full bg-gray-100 text-gray-600 dark:bg-gray-700 dark:text-gray-400">
+                            Disabled
+                        </span>
+
+                        <!-- Toggle Switch -->
+                        <button
+                            @click="toggleModule(module)"
+                            :disabled="saving"
+                            :class="{
+                                'bg-purple-600': module.is_enabled,
+                                'bg-gray-200 dark:bg-gray-600': !module.is_enabled
+                            }"
+                            class="relative inline-flex h-6 w-11 flex-shrink-0 cursor-pointer rounded-full border-2 border-transparent transition-colors duration-200 ease-in-out focus:outline-none focus:ring-2 focus:ring-purple-500 focus:ring-offset-2"
+                            role="switch"
+                            :aria-checked="module.is_enabled"
+                        >
+                            <span
+                                :class="{
+                                    'translate-x-5': module.is_enabled,
+                                    'translate-x-0': !module.is_enabled
+                                }"
+                                class="pointer-events-none inline-block h-5 w-5 transform rounded-full bg-white shadow ring-0 transition duration-200 ease-in-out"
+                            ></span>
+                        </button>
+                    </div>
+                </div>
+            </template>
+        </div>
+    </div>
+
+    <!-- Empty State -->
+    <div x-show="moduleConfig?.modules?.length === 0" class="bg-white rounded-lg shadow-xs dark:bg-gray-800 p-8 text-center">
+        <span x-html="$icon('puzzle', 'w-12 h-12 mx-auto text-gray-400')"></span>
+        <p class="mt-4 text-gray-500 dark:text-gray-400">No modules available.</p>
+    </div>
+</div>
+
+{% endblock %}
+
+{% block extra_scripts %}
+<script src="{{ url_for('static', path='admin/js/platform-modules.js') }}"></script>
+{% endblock %}
diff --git a/static/admin/js/platform-modules.js b/static/admin/js/platform-modules.js
new file mode 100644
index 00000000..e12dbbcf
--- /dev/null
+++ b/static/admin/js/platform-modules.js
@@ -0,0 +1,227 @@
+// static/admin/js/platform-modules.js
+// Platform module configuration management
+
+const moduleConfigLog = window.LogConfig?.loggers?.moduleConfig || window.LogConfig?.createLogger?.('moduleConfig') || console;
+
+function adminPlatformModules(platformCode) {
+    // Get base data with safety check for standalone usage
+    const baseData = typeof data === 'function' ? data() : {};
+
+    return {
+        // Inherit base layout functionality from init-alpine.js
+        ...baseData,
+
+        // Page-specific state
+        currentPage: 'platforms',
+        platformCode: platformCode,
+        loading: true,
+        error: null,
+        successMessage: null,
+        saving: false,
+
+        // Data
+        platform: null,
+        moduleConfig: null,
+
+        // Computed properties
+        get coreModules() {
+            if (!this.moduleConfig?.modules) return [];
+            return this.moduleConfig.modules.filter(m => m.is_core);
+        },
+
+        get optionalModules() {
+            if (!this.moduleConfig?.modules) return [];
+            return this.moduleConfig.modules.filter(m => !m.is_core);
+        },
+
+        get coreModulesCount() {
+            return this.coreModules.length;
+        },
+
+        get enabledOptionalCount() {
+            return this.optionalModules.filter(m => m.is_enabled).length;
+        },
+
+        // Module icons mapping
+        getModuleIcon(moduleCode) {
+            const icons = {
+                'core': 'home',
+                'platform-admin': 'building-office',
+                'billing': 'credit-card',
+                'inventory': 'archive-box',
+                'orders': 'shopping-cart',
+                'marketplace': 'shopping-bag',
+                'customers': 'users',
+                'cms': 'document-text',
+                'analytics': 'chart-bar',
+                'messaging': 'chat-bubble-left-right',
+                'dev-tools': 'code-bracket',
+                'monitoring': 'chart-bar-square'
+            };
+            return icons[moduleCode] || 'puzzle';
+        },
+
+        async init() {
+            moduleConfigLog.info('=== PLATFORM MODULES PAGE INITIALIZING ===');
+            moduleConfigLog.info('Platform code:', this.platformCode);
+
+            try {
+                await this.loadPlatform();
+                await this.loadModuleConfig();
+                moduleConfigLog.info('=== PLATFORM MODULES PAGE INITIALIZED ===');
+            } catch (error) {
+                moduleConfigLog.error('Failed to initialize modules page:', error);
+                this.error = 'Failed to load page data. Please refresh.';
+            }
+        },
+
+        async refresh() {
+            this.error = null;
+            this.successMessage = null;
+            await this.loadModuleConfig();
+        },
+
+        async loadPlatform() {
+            try {
+                this.platform = await apiClient.get(`/admin/platforms/${this.platformCode}`);
+                moduleConfigLog.info('Loaded platform:', this.platform?.name);
+            } catch (error) {
+                moduleConfigLog.error('Failed to load platform:', error);
+                throw error;
+            }
+        },
+
+        async loadModuleConfig() {
+            this.loading = true;
+            this.error = null;
+
+            try {
+                const platformId = this.platform?.id;
+                if (!platformId) {
+                    throw new Error('Platform not loaded');
+                }
+
+                this.moduleConfig = await apiClient.get(`/admin/modules/platforms/${platformId}`);
+                moduleConfigLog.info('Loaded module config:', {
+                    total: this.moduleConfig?.total,
+                    enabled: this.moduleConfig?.enabled,
+                    disabled: this.moduleConfig?.disabled
+                });
+            } catch (error) {
+                moduleConfigLog.error('Failed to load module config:', error);
+                this.error = error.message || 'Failed to load module configuration';
+            } finally {
+                this.loading = false;
+            }
+        },
+
+        async toggleModule(module) {
+            if (module.is_core) {
+                moduleConfigLog.warn('Cannot toggle core module:', module.code);
+                return;
+            }
+
+            this.saving = true;
+            this.error = null;
+            this.successMessage = null;
+
+            const action = module.is_enabled ? 'disable' : 'enable';
+
+            try {
+                const platformId = this.platform?.id;
+                const endpoint = `/admin/modules/platforms/${platformId}/${action}`;
+
+                const result = await apiClient.post(endpoint, {
+                    module_code: module.code
+                });
+
+                moduleConfigLog.info(`${action}d module:`, module.code, result);
+
+                // Show success message
+                if (result.also_enabled?.length > 0) {
+                    this.successMessage = `Module '${module.name}' enabled. Also enabled dependencies: ${result.also_enabled.join(', ')}`;
+                } else if (result.also_disabled?.length > 0) {
+                    this.successMessage = `Module '${module.name}' disabled. Also disabled dependents: ${result.also_disabled.join(', ')}`;
+                } else {
+                    this.successMessage = `Module '${module.name}' ${action}d successfully`;
+                }
+
+                // Reload module config to get updated state
+                await this.loadModuleConfig();
+
+                // Clear success message after delay
+                setTimeout(() => {
+                    this.successMessage = null;
+                }, 5000);
+
+            } catch (error) {
+                moduleConfigLog.error(`Failed to ${action} module:`, error);
+                this.error = error.message || `Failed to ${action} module`;
+            } finally {
+                this.saving = false;
+            }
+        },
+
+        async enableAll() {
+            if (!confirm('This will enable all modules. Continue?')) {
+                return;
+            }
+
+            this.saving = true;
+            this.error = null;
+            this.successMessage = null;
+
+            try {
+                const platformId = this.platform?.id;
+                const result = await apiClient.post(`/admin/modules/platforms/${platformId}/enable-all`);
+
+                moduleConfigLog.info('Enabled all modules:', result);
+                this.successMessage = `All ${result.enabled_count} modules enabled`;
+
+                // Reload module config
+                await this.loadModuleConfig();
+
+                setTimeout(() => {
+                    this.successMessage = null;
+                }, 5000);
+
+            } catch (error) {
+                moduleConfigLog.error('Failed to enable all modules:', error);
+                this.error = error.message || 'Failed to enable all modules';
+            } finally {
+                this.saving = false;
+            }
+        },
+
+        async disableOptional() {
+            if (!confirm('This will disable all optional modules, keeping only core modules. Continue?')) {
+                return;
+            }
+
+            this.saving = true;
+            this.error = null;
+            this.successMessage = null;
+
+            try {
+                const platformId = this.platform?.id;
+                const result = await apiClient.post(`/admin/modules/platforms/${platformId}/disable-optional`);
+
+                moduleConfigLog.info('Disabled optional modules:', result);
+                this.successMessage = `Optional modules disabled. Core modules kept: ${result.core_modules.join(', ')}`;
+
+                // Reload module config
+                await this.loadModuleConfig();
+
+                setTimeout(() => {
+                    this.successMessage = null;
+                }, 5000);
+
+            } catch (error) {
+                moduleConfigLog.error('Failed to disable optional modules:', error);
+                this.error = error.message || 'Failed to disable optional modules';
+            } finally {
+                this.saving = false;
+            }
+        }
+    };
+}