Fix new Frontend 7

services/data/app/api/sales.py

@@ -247,26 +247,52 @@ async def import_sales_data(
 
 @router.post("/tenants/{tenant_id}/sales/import/validate", response_model=SalesValidationResult)
 async def validate_import_data(
-    import_data: SalesDataImport,
     tenant_id: UUID = Path(..., description="Tenant ID"),
+    file: UploadFile = File(..., description="File to validate"),
+    file_format: str = Form(default="csv", description="File format: csv, json, excel"),
+    validate_only: bool = Form(default=True, description="Only validate, don't import"),
+    source: str = Form(default="onboarding_upload", description="Source of the upload"),
     current_user: Dict[str, Any] = Depends(get_current_user_dep)
 ):
-    """Validate import data - Gateway already verified tenant access"""
+    """
+    ✅ FIXED: Validate import data using FormData (same as import endpoint)
+    Now both validation and import endpoints use the same FormData approach
+    """
     try:
-        logger.debug("Validating import data", 
+        logger.info("Validating import data", 
+                   tenant_id=tenant_id,
+                   format=file_format,
+                   filename=file.filename,
+                   user_id=current_user["user_id"])
+        
+        # ✅ STEP 1: Read file content (same as import endpoint)
+        content = await file.read()
+        file_content = content.decode('utf-8')
+        
+        # ✅ STEP 2: Create validation data structure
+        # This matches the SalesDataImport schema but gets data from FormData
+        validation_data = {
+            "tenant_id": str(tenant_id),  # From URL path
+            "data": file_content,         # From uploaded file
+            "data_format": file_format,   # From form field
+            "source": source,             # From form field
+            "validate_only": validate_only # From form field
+        }
+        
+        logger.debug("Validation data prepared", 
                     tenant_id=tenant_id,
-                    user_id=current_user["user_id"])
+                    data_length=len(file_content),
+                    format=file_format)
         
-        # Set tenant context from URL path
-        import_data.tenant_id = tenant_id
+        # ✅ STEP 3: Use existing validation service
+        validation_result = await DataImportService.validate_import_data(validation_data)
         
-        validation = await DataImportService.validate_import_data(import_data.model_dump())
+        logger.info("Validation completed", 
+                   is_valid=validation_result.get("is_valid", False),
+                   total_records=validation_result.get("total_records", 0),
+                   tenant_id=tenant_id)
         
-        logger.debug("Validation completed", 
-                    is_valid=validation.get("is_valid", False),
-                    tenant_id=tenant_id)
-        
-        return validation
+        return validation_result
         
     except Exception as e:
         logger.error("Failed to validate import data",