feat: add import error tracking and translation tabs

Import Error Tracking:
- Add MarketplaceImportError model to store detailed error information
- Store row number, identifier, error type, message, and row data for each error
- Add API endpoint GET /admin/marketplace-import-jobs/{job_id}/errors
- Add UI to view and browse import errors in job details modal
- Support pagination and error type filtering

Translation Tabs:
- Replace flat translation list with tabbed interface on product detail page
- Add language tabs with full language names
- Add copy-to-clipboard functionality for translation content
- Improved UX with better visual separation of translations

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

alembic/versions/91d02647efae_add_marketplace_import_errors_table.py

@@ -0,0 +1,44 @@
+"""add marketplace import errors table
+
+Revision ID: 91d02647efae
+Revises: 987b4ecfa503
+Create Date: 2025-12-13 13:13:46.969503
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision: str = '91d02647efae'
+down_revision: Union[str, None] = '987b4ecfa503'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # Create marketplace_import_errors table to store detailed import error information
+    op.create_table('marketplace_import_errors',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('import_job_id', sa.Integer(), nullable=False),
+        sa.Column('row_number', sa.Integer(), nullable=False),
+        sa.Column('identifier', sa.String(), nullable=True),
+        sa.Column('error_type', sa.String(length=50), nullable=False),
+        sa.Column('error_message', sa.Text(), nullable=False),
+        sa.Column('row_data', sa.JSON(), nullable=True),
+        sa.Column('created_at', sa.DateTime(), nullable=False),
+        sa.Column('updated_at', sa.DateTime(), nullable=False),
+        sa.ForeignKeyConstraint(['import_job_id'], ['marketplace_import_jobs.id'], ondelete='CASCADE'),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index('idx_import_error_job_id', 'marketplace_import_errors', ['import_job_id'], unique=False)
+    op.create_index('idx_import_error_type', 'marketplace_import_errors', ['error_type'], unique=False)
+    op.create_index(op.f('ix_marketplace_import_errors_id'), 'marketplace_import_errors', ['id'], unique=False)
+
+
+def downgrade() -> None:
+    op.drop_index(op.f('ix_marketplace_import_errors_id'), table_name='marketplace_import_errors')
+    op.drop_index('idx_import_error_type', table_name='marketplace_import_errors')
+    op.drop_index('idx_import_error_job_id', table_name='marketplace_import_errors')
+    op.drop_table('marketplace_import_errors')

app/api/v1/admin/marketplace.py

@@ -19,6 +19,8 @@ from models.schema.marketplace_import_job import (
     AdminMarketplaceImportJobListResponse,
     AdminMarketplaceImportJobRequest,
     AdminMarketplaceImportJobResponse,
+    MarketplaceImportErrorListResponse,
+    MarketplaceImportErrorResponse,
     MarketplaceImportJobRequest,
     MarketplaceImportJobResponse,
 )
@@ -128,3 +130,36 @@ def get_marketplace_import_job(
     """Get a single marketplace import job by ID (Admin only)."""
     job = marketplace_import_job_service.get_import_job_by_id_admin(db, job_id)
     return marketplace_import_job_service.convert_to_admin_response_model(job)
+
+
+@router.get("/{job_id}/errors", response_model=MarketplaceImportErrorListResponse)
+def get_import_job_errors(
+    job_id: int,
+    page: int = Query(1, ge=1),
+    limit: int = Query(50, ge=1, le=100),
+    error_type: str | None = Query(None, description="Filter by error type"),
+    db: Session = Depends(get_db),
+    current_admin: User = Depends(get_current_admin_api),
+):
+    """Get import errors for a specific job (Admin only).
+
+    Returns detailed error information including row number, identifier,
+    error type, error message, and raw row data for review.
+    """
+    # Verify job exists
+    marketplace_import_job_service.get_import_job_by_id_admin(db, job_id)
+
+    # Get errors from service
+    errors, total = marketplace_import_job_service.get_import_job_errors(
+        db=db,
+        job_id=job_id,
+        error_type=error_type,
+        page=page,
+        limit=limit,
+    )
+
+    return MarketplaceImportErrorListResponse(
+        errors=[MarketplaceImportErrorResponse.model_validate(e) for e in errors],
+        total=total,
+        import_job_id=job_id,
+    )

app/services/marketplace_import_job_service.py

@@ -8,7 +8,7 @@ from app.exceptions import (
     ImportJobNotOwnedException,
     ValidationException,
 )
-from models.database.marketplace_import_job import MarketplaceImportJob
+from models.database.marketplace_import_job import MarketplaceImportError, MarketplaceImportJob
 from models.database.user import User
 from models.database.vendor import Vendor
 from models.schema.marketplace_import_job import (
@@ -271,5 +271,50 @@ class MarketplaceImportJobService:
             raise ImportJobNotFoundException(job_id)
         return job
 
+    def get_import_job_errors(
+        self,
+        db: Session,
+        job_id: int,
+        error_type: str | None = None,
+        page: int = 1,
+        limit: int = 50,
+    ) -> tuple[list[MarketplaceImportError], int]:
+        """
+        Get import errors for a specific job with pagination.
+
+        Args:
+            db: Database session
+            job_id: Import job ID
+            error_type: Optional filter by error type
+            page: Page number (1-indexed)
+            limit: Number of items per page
+
+        Returns:
+            Tuple of (list of errors, total count)
+        """
+        try:
+            query = db.query(MarketplaceImportError).filter(
+                MarketplaceImportError.import_job_id == job_id
+            )
+
+            if error_type:
+                query = query.filter(MarketplaceImportError.error_type == error_type)
+
+            total = query.count()
+
+            offset = (page - 1) * limit
+            errors = (
+                query.order_by(MarketplaceImportError.row_number)
+                .offset(offset)
+                .limit(limit)
+                .all()
+            )
+
+            return errors, total
+
+        except Exception as e:
+            logger.error(f"Error getting import job errors for job {job_id}: {str(e)}")
+            raise ValidationException("Failed to retrieve import errors")
+
 
 marketplace_import_job_service = MarketplaceImportJobService()

app/tasks/background_tasks.py

@@ -73,6 +73,7 @@ async def process_marketplace_import(
             batch_size=batch_size,
             db=db,
             language=language,  # Pass language for translations
+            import_job_id=job_id,  # Pass job ID for error tracking
         )
 
         # Update job with results

app/templates/admin/marketplace-product-detail.html

@@ -221,34 +221,93 @@
         </div>
     </div>
 
-    <!-- Translations Card -->
-    <div class="px-4 py-3 mb-6 bg-white rounded-lg shadow-md dark:bg-gray-800" x-show="product?.translations && Object.keys(product.translations).length > 0">
-        <h3 class="mb-4 text-lg font-semibold text-gray-700 dark:text-gray-200">
-            Translations
-        </h3>
-        <div class="space-y-6">
-            <template x-for="(trans, lang) in (product?.translations || {})" :key="lang">
-                <div class="border-b border-gray-200 dark:border-gray-700 pb-4 last:border-b-0 last:pb-0">
-                    <div class="flex items-center gap-2 mb-2">
-                        <span class="px-2 py-0.5 text-xs font-semibold uppercase bg-gray-100 dark:bg-gray-700 rounded" x-text="lang"></span>
+    <!-- Translations Card with Tabs -->
+    <div class="px-4 py-3 mb-6 bg-white rounded-lg shadow-md dark:bg-gray-800" x-show="product?.translations && Object.keys(product.translations).length > 0" x-data="{ activeTab: Object.keys(product?.translations || {})[0] || '' }">
+        <div class="flex items-center justify-between mb-4">
+            <h3 class="text-lg font-semibold text-gray-700 dark:text-gray-200">
+                Translations
+            </h3>
+            <span class="text-sm text-gray-500 dark:text-gray-400">
+                <span x-text="Object.keys(product?.translations || {}).length"></span> language(s)
+            </span>
+        </div>
+
+        <!-- Language Tabs -->
+        <div class="border-b border-gray-200 dark:border-gray-700 mb-4">
+            <nav class="-mb-px flex space-x-4 overflow-x-auto" aria-label="Translation tabs">
+                <template x-for="(trans, lang) in (product?.translations || {})" :key="lang">
+                    <button
+                        @click="activeTab = lang"
+                        :class="{
+                            'border-purple-500 text-purple-600 dark:text-purple-400': activeTab === lang,
+                            'border-transparent text-gray-500 hover:text-gray-700 hover:border-gray-300 dark:text-gray-400 dark:hover:text-gray-300': activeTab !== lang
+                        }"
+                        class="whitespace-nowrap py-2 px-1 border-b-2 font-medium text-sm transition-colors"
+                    >
+                        <span class="uppercase" x-text="lang"></span>
+                        <span class="ml-1 text-xs text-gray-400" x-text="getLanguageName(lang)"></span>
+                    </button>
+                </template>
+            </nav>
+        </div>
+
+        <!-- Tab Content -->
+        <template x-for="(trans, lang) in (product?.translations || {})" :key="'content-' + lang">
+            <div x-show="activeTab === lang" x-transition:enter="transition ease-out duration-200" x-transition:enter-start="opacity-0" x-transition:enter-end="opacity-100">
+                <div class="space-y-4">
+                    <!-- Title -->
+                    <div class="bg-gray-50 dark:bg-gray-700/50 p-4 rounded-lg">
+                        <div class="flex items-center justify-between mb-2">
+                            <p class="text-xs font-semibold text-gray-600 dark:text-gray-400 uppercase">Title</p>
+                            <button
+                                @click="copyToClipboard(trans?.title)"
+                                class="p-1 text-gray-400 hover:text-gray-600 dark:hover:text-gray-300"
+                                title="Copy to clipboard"
+                            >
+                                <span x-html="$icon('clipboard', 'w-4 h-4')"></span>
+                            </button>
+                        </div>
+                        <p class="text-base font-medium text-gray-900 dark:text-gray-100" x-text="trans?.title || 'No title'"></p>
                     </div>
-                    <div class="space-y-2">
-                        <div>
-                            <p class="text-xs font-semibold text-gray-600 dark:text-gray-400">Title</p>
-                            <p class="text-sm text-gray-700 dark:text-gray-300" x-text="trans?.title || '-'">-</p>
+
+                    <!-- Short Description -->
+                    <div x-show="trans?.short_description" class="bg-gray-50 dark:bg-gray-700/50 p-4 rounded-lg">
+                        <div class="flex items-center justify-between mb-2">
+                            <p class="text-xs font-semibold text-gray-600 dark:text-gray-400 uppercase">Short Description</p>
+                            <button
+                                @click="copyToClipboard(trans?.short_description)"
+                                class="p-1 text-gray-400 hover:text-gray-600 dark:hover:text-gray-300"
+                                title="Copy to clipboard"
+                            >
+                                <span x-html="$icon('clipboard', 'w-4 h-4')"></span>
+                            </button>
                         </div>
-                        <div x-show="trans?.short_description">
-                            <p class="text-xs font-semibold text-gray-600 dark:text-gray-400">Short Description</p>
-                            <p class="text-sm text-gray-700 dark:text-gray-300" x-text="trans?.short_description">-</p>
-                        </div>
-                        <div x-show="trans?.description">
-                            <p class="text-xs font-semibold text-gray-600 dark:text-gray-400">Description</p>
-                            <div class="text-sm text-gray-700 dark:text-gray-300 prose prose-sm dark:prose-invert max-w-none" x-html="trans?.description || '-'"></div>
+                        <p class="text-sm text-gray-700 dark:text-gray-300" x-text="trans?.short_description"></p>
+                    </div>
+
+                    <!-- Description -->
+                    <div x-show="trans?.description" class="bg-gray-50 dark:bg-gray-700/50 p-4 rounded-lg">
+                        <div class="flex items-center justify-between mb-2">
+                            <p class="text-xs font-semibold text-gray-600 dark:text-gray-400 uppercase">Description</p>
+                            <button
+                                @click="copyToClipboard(trans?.description)"
+                                class="p-1 text-gray-400 hover:text-gray-600 dark:hover:text-gray-300"
+                                title="Copy to clipboard"
+                            >
+                                <span x-html="$icon('clipboard', 'w-4 h-4')"></span>
+                            </button>
                         </div>
+                        <div class="text-sm text-gray-700 dark:text-gray-300 prose prose-sm dark:prose-invert max-w-none max-h-96 overflow-y-auto" x-html="trans?.description || 'No description'"></div>
+                    </div>
+
+                    <!-- Empty state if no content -->
+                    <div x-show="!trans?.title && !trans?.short_description && !trans?.description" class="text-center py-8">
+                        <span x-html="$icon('document-text', 'w-12 h-12 mx-auto text-gray-300 dark:text-gray-600')"></span>
+                        <p class="mt-2 text-sm text-gray-500 dark:text-gray-400">No translation content for this language</p>
                     </div>
                 </div>
-            </template>
-        </div>
+            </div>
+        </template>
     </div>
 
     <!-- Timestamps -->

app/templates/shared/macros/modals.html

@@ -625,11 +625,64 @@
                 </div>
             </div>
 
-            {# Error Details #}
-            <div x-show="{{ job_var }}?.error_details?.length > 0">
-                <p class="text-sm font-medium text-gray-600 dark:text-gray-400 mb-2">Error Details</p>
-                <div class="p-3 bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 rounded-lg max-h-48 overflow-y-auto">
-                    <pre class="text-xs text-red-700 dark:text-red-300 whitespace-pre-wrap font-mono" x-text="JSON.stringify({{ job_var }}?.error_details, null, 2)"></pre>
+            {# Detailed Import Errors #}
+            <div x-show="{{ job_var }}?.error_count > 0">
+                <div class="flex items-center justify-between mb-2">
+                    <p class="text-sm font-medium text-gray-600 dark:text-gray-400">Import Errors</p>
+                    <button
+                        x-show="!jobErrors || jobErrors.length === 0"
+                        @click="loadJobErrors({{ job_var }}?.id)"
+                        :disabled="loadingErrors"
+                        class="px-3 py-1 text-xs font-medium text-purple-600 dark:text-purple-400 border border-purple-300 dark:border-purple-600 rounded-lg hover:bg-purple-50 dark:hover:bg-purple-900/20 disabled:opacity-50"
+                    >
+                        <span x-show="loadingErrors" x-html="$icon('spinner', 'w-3 h-3 mr-1 inline')"></span>
+                        <span x-text="loadingErrors ? 'Loading...' : 'View Errors'"></span>
+                    </button>
+                </div>
+
+                {# Errors List #}
+                <div x-show="jobErrors && jobErrors.length > 0" class="space-y-2 max-h-64 overflow-y-auto">
+                    <template x-for="error in jobErrors" :key="error.id">
+                        <div class="p-3 bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 rounded-lg">
+                            <div class="flex items-start justify-between">
+                                <div class="flex-1">
+                                    <div class="flex items-center gap-2 mb-1">
+                                        <span class="px-2 py-0.5 text-xs font-medium bg-red-100 dark:bg-red-800 text-red-700 dark:text-red-300 rounded" x-text="error.error_type"></span>
+                                        <span class="text-xs text-gray-500 dark:text-gray-400">Row <span x-text="error.row_number"></span></span>
+                                    </div>
+                                    <p class="text-sm text-red-700 dark:text-red-300" x-text="error.error_message"></p>
+                                    <p x-show="error.identifier" class="text-xs text-gray-500 dark:text-gray-400 mt-1">
+                                        ID: <span class="font-mono" x-text="error.identifier"></span>
+                                    </p>
+                                </div>
+                                <button
+                                    x-show="error.row_data"
+                                    @click="error._expanded = !error._expanded"
+                                    class="ml-2 p-1 text-gray-400 hover:text-gray-600 dark:hover:text-gray-300"
+                                    :title="error._expanded ? 'Hide row data' : 'Show row data'"
+                                >
+                                    <span x-html="$icon(error._expanded ? 'chevron-up' : 'chevron-down', 'w-4 h-4')"></span>
+                                </button>
+                            </div>
+                            {# Expandable row data #}
+                            <div x-show="error._expanded && error.row_data" x-collapse class="mt-2 pt-2 border-t border-red-200 dark:border-red-700">
+                                <p class="text-xs text-gray-500 dark:text-gray-400 mb-1">Row Data:</p>
+                                <pre class="text-xs text-gray-600 dark:text-gray-300 font-mono whitespace-pre-wrap bg-white dark:bg-gray-800 p-2 rounded" x-text="JSON.stringify(error.row_data, null, 2)"></pre>
+                            </div>
+                        </div>
+                    </template>
+                </div>
+
+                {# Pagination for errors #}
+                <div x-show="jobErrorsTotal > jobErrors?.length" class="mt-3 flex items-center justify-between text-xs text-gray-500 dark:text-gray-400">
+                    <span>Showing <span x-text="jobErrors?.length"></span> of <span x-text="jobErrorsTotal"></span> errors</span>
+                    <button
+                        @click="loadMoreJobErrors({{ job_var }}?.id)"
+                        :disabled="loadingErrors"
+                        class="text-purple-600 dark:text-purple-400 hover:underline disabled:opacity-50"
+                    >
+                        Load more
+                    </button>
                 </div>
             </div>
         </div>

app/utils/csv_processor.py

@@ -18,6 +18,7 @@ import requests
 from sqlalchemy import literal
 from sqlalchemy.orm import Session
 
+from models.database.marketplace_import_job import MarketplaceImportError
 from models.database.marketplace_product import MarketplaceProduct
 from models.database.marketplace_product_translation import MarketplaceProductTranslation
 
@@ -280,6 +281,7 @@ class CSVProcessor:
         batch_size: int,
         db: Session,
         language: str = "en",
+        import_job_id: int | None = None,
     ) -> dict[str, Any]:
         """
         Process CSV from URL with marketplace and vendor information.
@@ -291,6 +293,7 @@ class CSVProcessor:
             batch_size: Number of rows to process in each batch
             db: Database session
             language: Language code for translations (default: 'en')
+            import_job_id: ID of the import job for error tracking (optional)
 
         Returns:
             Dictionary with processing results
@@ -315,6 +318,8 @@ class CSVProcessor:
         # Process in batches
         for i in range(0, len(df), batch_size):
             batch_df = df.iloc[i : i + batch_size]
+            # Calculate base row number for this batch (1-indexed for user-friendly display)
+            base_row_num = i + 2  # +2 for header row and 1-indexing
             batch_result = await self._process_marketplace_batch(
                 batch_df,
                 marketplace,
@@ -323,6 +328,8 @@ class CSVProcessor:
                 i // batch_size + 1,
                 language=language,
                 source_file=source_file,
+                import_job_id=import_job_id,
+                base_row_num=base_row_num,
             )
 
             imported += batch_result["imported"]
@@ -341,6 +348,39 @@ class CSVProcessor:
             "language": language,
         }
 
+    def _create_import_error(
+        self,
+        db: Session,
+        import_job_id: int,
+        row_number: int,
+        error_type: str,
+        error_message: str,
+        identifier: str | None = None,
+        row_data: dict | None = None,
+    ) -> None:
+        """Create an import error record in the database."""
+        # Limit row_data size to prevent huge JSON storage
+        if row_data:
+            # Keep only key fields for review
+            limited_data = {
+                k: v for k, v in row_data.items()
+                if k in [
+                    "marketplace_product_id", "title", "gtin", "mpn", "sku",
+                    "brand", "price", "availability", "link"
+                ] and v is not None and str(v).strip()
+            }
+            row_data = limited_data if limited_data else None
+
+        error_record = MarketplaceImportError(
+            import_job_id=import_job_id,
+            row_number=row_number,
+            identifier=identifier,
+            error_type=error_type,
+            error_message=error_message,
+            row_data=row_data,
+        )
+        db.add(error_record)
+
     async def _process_marketplace_batch(
         self,
         batch_df: pd.DataFrame,
@@ -350,6 +390,8 @@ class CSVProcessor:
         batch_num: int,
         language: str = "en",
         source_file: str | None = None,
+        import_job_id: int | None = None,
+        base_row_num: int = 2,
     ) -> dict[str, int]:
         """Process a batch of CSV rows with marketplace information."""
         imported = 0
@@ -361,10 +403,13 @@ class CSVProcessor:
             f"{marketplace} -> {vendor_name}"
         )
 
-        for index, row in batch_df.iterrows():
+        for batch_idx, (index, row) in enumerate(batch_df.iterrows()):
+            row_number = base_row_num + batch_idx
+            row_dict = row.to_dict()
+
             try:
                 # Convert row to dictionary and clean up
-                product_data = self._clean_row_data(row.to_dict())
+                product_data = self._clean_row_data(row_dict)
 
                 # Extract translation fields BEFORE processing product
                 translation_data = self._extract_translation_data(product_data)
@@ -373,17 +418,40 @@ class CSVProcessor:
                 product_data["marketplace"] = marketplace
                 product_data["vendor_name"] = vendor_name
 
+                # Get identifier for error tracking
+                identifier = product_data.get("marketplace_product_id") or product_data.get("gtin") or product_data.get("mpn")
+
                 # Validate required fields
                 if not product_data.get("marketplace_product_id"):
                     logger.warning(
-                        f"Row {index}: Missing marketplace_product_id, skipping"
+                        f"Row {row_number}: Missing marketplace_product_id, skipping"
                     )
+                    if import_job_id:
+                        self._create_import_error(
+                            db=db,
+                            import_job_id=import_job_id,
+                            row_number=row_number,
+                            error_type="missing_id",
+                            error_message="Missing marketplace_product_id - product cannot be identified",
+                            identifier=identifier,
+                            row_data=row_dict,
+                        )
                     errors += 1
                     continue
 
                 # Title is now required in translation_data
                 if not translation_data.get("title"):
-                    logger.warning(f"Row {index}: Missing title, skipping")
+                    logger.warning(f"Row {row_number}: Missing title, skipping")
+                    if import_job_id:
+                        self._create_import_error(
+                            db=db,
+                            import_job_id=import_job_id,
+                            row_number=row_number,
+                            error_type="missing_title",
+                            error_message="Missing title - product title is required",
+                            identifier=product_data.get("marketplace_product_id"),
+                            row_data=row_dict,
+                        )
                     errors += 1
                     continue
 
@@ -448,7 +516,17 @@ class CSVProcessor:
                     )
 
             except Exception as e:
-                logger.error(f"Error processing row: {e}")
+                logger.error(f"Error processing row {row_number}: {e}")
+                if import_job_id:
+                    self._create_import_error(
+                        db=db,
+                        import_job_id=import_job_id,
+                        row_number=row_number,
+                        error_type="processing_error",
+                        error_message=str(e),
+                        identifier=row_dict.get("marketplace_product_id") or row_dict.get("id"),
+                        row_data=row_dict,
+                    )
                 errors += 1
                 continue
 

models/database/__init__.py

@@ -20,7 +20,7 @@ from .company import Company
 from .content_page import ContentPage
 from .customer import Customer, CustomerAddress
 from .inventory import Inventory
-from .marketplace_import_job import MarketplaceImportJob
+from .marketplace_import_job import MarketplaceImportError, MarketplaceImportJob
 from .marketplace_product import (
     DigitalDeliveryMethod,
     MarketplaceProduct,
@@ -83,6 +83,7 @@ __all__ = [
     "ProductTranslation",
     # Import
     "MarketplaceImportJob",
+    "MarketplaceImportError",
     # Inventory
     "Inventory",
     # Orders

models/database/marketplace_import_job.py

@@ -1,10 +1,59 @@
-from sqlalchemy import Column, DateTime, ForeignKey, Index, Integer, String, Text
+from sqlalchemy import JSON, Column, DateTime, ForeignKey, Index, Integer, String, Text
 from sqlalchemy.orm import relationship
 
 from app.core.database import Base
 from models.database.base import TimestampMixin
 
 
+class MarketplaceImportError(Base, TimestampMixin):
+    """
+    Stores detailed information about individual import errors.
+
+    Each row that fails during import creates an error record with:
+    - Row number from the source file
+    - Identifier (marketplace_product_id if available)
+    - Error type and message
+    - Raw row data for review
+    """
+
+    __tablename__ = "marketplace_import_errors"
+
+    id = Column(Integer, primary_key=True, index=True)
+    import_job_id = Column(
+        Integer,
+        ForeignKey("marketplace_import_jobs.id", ondelete="CASCADE"),
+        nullable=False,
+        index=True,
+    )
+
+    # Error location
+    row_number = Column(Integer, nullable=False)
+
+    # Identifier from the row (if available)
+    identifier = Column(String)  # marketplace_product_id, gtin, mpn, etc.
+
+    # Error details
+    error_type = Column(String(50), nullable=False)  # missing_title, missing_id, parse_error, etc.
+    error_message = Column(Text, nullable=False)
+
+    # Raw row data for review (JSON)
+    row_data = Column(JSON)
+
+    # Relationship
+    import_job = relationship("MarketplaceImportJob", back_populates="errors")
+
+    __table_args__ = (
+        Index("idx_import_error_job_id", "import_job_id"),
+        Index("idx_import_error_type", "error_type"),
+    )
+
+    def __repr__(self):
+        return (
+            f"<MarketplaceImportError(id={self.id}, job_id={self.import_job_id}, "
+            f"row={self.row_number}, type='{self.error_type}')>"
+        )
+
+
 class MarketplaceImportJob(Base, TimestampMixin):
     __tablename__ = "marketplace_import_jobs"
 
@@ -37,6 +86,12 @@ class MarketplaceImportJob(Base, TimestampMixin):
     # Relationships
     vendor = relationship("Vendor", back_populates="marketplace_import_jobs")
     user = relationship("User", foreign_keys=[user_id])
+    errors = relationship(
+        "MarketplaceImportError",
+        back_populates="import_job",
+        cascade="all, delete-orphan",
+        order_by="MarketplaceImportError.row_number",
+    )
 
     # Indexes for performance
     __table_args__ = (

models/schema/marketplace_import_job.py

@@ -81,6 +81,28 @@ class AdminMarketplaceImportJobRequest(BaseModel):
         return v
 
 
+class MarketplaceImportErrorResponse(BaseModel):
+    """Response schema for individual import error."""
+
+    model_config = ConfigDict(from_attributes=True)
+
+    id: int
+    row_number: int
+    identifier: str | None = None
+    error_type: str
+    error_message: str
+    row_data: dict | None = None
+    created_at: datetime
+
+
+class MarketplaceImportErrorListResponse(BaseModel):
+    """Response schema for list of import errors."""
+
+    errors: list[MarketplaceImportErrorResponse]
+    total: int
+    import_job_id: int
+
+
 class MarketplaceImportJobResponse(BaseModel):
     """Response schema for marketplace import job."""
 

static/admin/js/imports.js

@@ -54,6 +54,12 @@ function adminImports() {
         showJobModal: false,
         selectedJob: null,
 
+        // Job errors state
+        jobErrors: [],
+        jobErrorsTotal: 0,
+        jobErrorsPage: 1,
+        loadingErrors: false,
+
         // Auto-refresh for active jobs
         autoRefreshInterval: null,
 
@@ -275,6 +281,58 @@ function adminImports() {
         closeJobModal() {
             this.showJobModal = false;
             this.selectedJob = null;
+            // Clear errors state
+            this.jobErrors = [];
+            this.jobErrorsTotal = 0;
+            this.jobErrorsPage = 1;
+        },
+
+        /**
+         * Load errors for a specific job
+         */
+        async loadJobErrors(jobId) {
+            if (!jobId) return;
+
+            this.loadingErrors = true;
+            this.jobErrorsPage = 1;
+
+            try {
+                const response = await apiClient.get(
+                    `/admin/marketplace-import-jobs/${jobId}/errors?page=1&limit=20`
+                );
+                this.jobErrors = response.errors || [];
+                this.jobErrorsTotal = response.total || 0;
+                adminImportsLog.debug('Loaded job errors:', this.jobErrors.length);
+            } catch (error) {
+                adminImportsLog.error('Failed to load job errors:', error);
+                this.error = error.message || 'Failed to load import errors';
+            } finally {
+                this.loadingErrors = false;
+            }
+        },
+
+        /**
+         * Load more errors (pagination)
+         */
+        async loadMoreJobErrors(jobId) {
+            if (!jobId || this.loadingErrors) return;
+
+            this.loadingErrors = true;
+            this.jobErrorsPage++;
+
+            try {
+                const response = await apiClient.get(
+                    `/admin/marketplace-import-jobs/${jobId}/errors?page=${this.jobErrorsPage}&limit=20`
+                );
+                const newErrors = response.errors || [];
+                this.jobErrors = [...this.jobErrors, ...newErrors];
+                adminImportsLog.debug('Loaded more job errors:', newErrors.length);
+            } catch (error) {
+                adminImportsLog.error('Failed to load more job errors:', error);
+                this.jobErrorsPage--; // Revert page on failure
+            } finally {
+                this.loadingErrors = false;
+            }
         },
 
         /**

static/admin/js/marketplace-product-detail.js

@@ -176,6 +176,53 @@ function adminMarketplaceProductDetail() {
             } catch (e) {
                 return dateString;
             }
+        },
+
+        /**
+         * Get full language name from ISO code
+         */
+        getLanguageName(code) {
+            const languages = {
+                'en': 'English',
+                'de': 'German',
+                'fr': 'French',
+                'lb': 'Luxembourgish',
+                'es': 'Spanish',
+                'it': 'Italian',
+                'nl': 'Dutch',
+                'pt': 'Portuguese',
+                'pl': 'Polish',
+                'cs': 'Czech',
+                'da': 'Danish',
+                'sv': 'Swedish',
+                'fi': 'Finnish',
+                'no': 'Norwegian',
+                'hu': 'Hungarian',
+                'ro': 'Romanian',
+                'bg': 'Bulgarian',
+                'el': 'Greek',
+                'sk': 'Slovak',
+                'sl': 'Slovenian',
+                'hr': 'Croatian',
+                'lt': 'Lithuanian',
+                'lv': 'Latvian',
+                'et': 'Estonian'
+            };
+            return languages[code?.toLowerCase()] || '';
+        },
+
+        /**
+         * Copy text to clipboard
+         */
+        async copyToClipboard(text) {
+            if (!text) return;
+            try {
+                await navigator.clipboard.writeText(text);
+                Utils.showToast('Copied to clipboard', 'success');
+            } catch (err) {
+                adminMarketplaceProductDetailLog.error('Failed to copy to clipboard:', err);
+                Utils.showToast('Failed to copy to clipboard', 'error');
+            }
         }
     };
 }

tests/integration/api/v1/admin/test_letzshop.py

@@ -189,7 +189,7 @@ class TestAdminLetzshopCredentialsAPI:
 class TestAdminLetzshopConnectionAPI:
     """Test admin Letzshop connection testing endpoints."""
 
-    @patch("app.services.letzshop.client.requests.Session.post")
+    @patch("app.services.letzshop.client_service.requests.Session.post")
     def test_test_vendor_connection(
         self, mock_post, client, admin_headers, test_vendor
     ):
@@ -217,7 +217,7 @@ class TestAdminLetzshopConnectionAPI:
         data = response.json()
         assert data["success"] is True
 
-    @patch("app.services.letzshop.client.requests.Session.post")
+    @patch("app.services.letzshop.client_service.requests.Session.post")
     def test_test_api_key_directly(
         self, mock_post, client, admin_headers
     ):
@@ -287,7 +287,7 @@ class TestAdminLetzshopOrdersAPI:
         assert data["total"] == 1
         assert data["orders"][0]["customer_email"] == "admin-test@example.com"
 
-    @patch("app.services.letzshop.client.requests.Session.post")
+    @patch("app.services.letzshop.client_service.requests.Session.post")
     def test_trigger_vendor_sync(
         self, mock_post, client, admin_headers, test_vendor
     ):

tests/integration/api/v1/vendor/test_letzshop.py

@@ -164,7 +164,7 @@ class TestVendorLetzshopConnectionAPI:
         assert data["success"] is False
         assert "not configured" in data["error_details"]
 
-    @patch("app.services.letzshop.client.requests.Session.post")
+    @patch("app.services.letzshop.client_service.requests.Session.post")
     def test_test_connection_success(
         self, mock_post, client, vendor_user_headers, test_vendor_with_vendor_user
     ):
@@ -192,7 +192,7 @@ class TestVendorLetzshopConnectionAPI:
         assert data["success"] is True
         assert data["response_time_ms"] is not None
 
-    @patch("app.services.letzshop.client.requests.Session.post")
+    @patch("app.services.letzshop.client_service.requests.Session.post")
     def test_test_api_key_without_saving(
         self, mock_post, client, vendor_user_headers, test_vendor_with_vendor_user
     ):
@@ -319,7 +319,7 @@ class TestVendorLetzshopOrdersAPI:
 
         assert response.status_code == 422  # Validation error
 
-    @patch("app.services.letzshop.client.requests.Session.post")
+    @patch("app.services.letzshop.client_service.requests.Session.post")
     def test_import_orders_success(
         self,
         mock_post,
@@ -384,7 +384,7 @@ class TestVendorLetzshopOrdersAPI:
 class TestVendorLetzshopFulfillmentAPI:
     """Test vendor Letzshop fulfillment endpoints."""
 
-    @patch("app.services.letzshop.client.requests.Session.post")
+    @patch("app.services.letzshop.client_service.requests.Session.post")
     def test_confirm_order(
         self,
         mock_post,
@@ -438,7 +438,7 @@ class TestVendorLetzshopFulfillmentAPI:
         data = response.json()
         assert data["success"] is True
 
-    @patch("app.services.letzshop.client.requests.Session.post")
+    @patch("app.services.letzshop.client_service.requests.Session.post")
     def test_set_tracking(
         self,
         mock_post,