diff --git a/src/alpine_bits_python/api.py b/src/alpine_bits_python/api.py
index 4e2844c..3feb831 100644
--- a/src/alpine_bits_python/api.py
+++ b/src/alpine_bits_python/api.py
@@ -26,6 +26,7 @@ from fastapi.security import (
 )
 from pydantic import BaseModel
 from slowapi.errors import RateLimitExceeded
+from sqlalchemy.exc import IntegrityError
 from sqlalchemy.ext.asyncio import async_sessionmaker, create_async_engine
 
 from alpine_bits_python.schemas import ReservationData
@@ -73,10 +74,7 @@ TOKEN_LOG_LENGTH = 10
 
 
 def get_advertising_account_ids(
-    config: dict[str, Any],
-    hotel_code: str,
-    fbclid: str | None,
-    gclid: str | None
+    config: dict[str, Any], hotel_code: str, fbclid: str | None, gclid: str | None
 ) -> tuple[str | None, str | None]:
     """Get advertising account IDs based on hotel config and click IDs.
 
@@ -830,13 +828,22 @@ async def process_generic_webhook_submission(
                     _LOGGER.warning("Invalid age value for child %d: %s", i, age_str)
 
     # Extract tracking information
-    utm_source = tracking_data.get("utm_source")
-    utm_medium = tracking_data.get("utm_medium")
-    utm_campaign = tracking_data.get("utm_campaign")
-    utm_term = tracking_data.get("utm_term")
-    utm_content = tracking_data.get("utm_content")
-    fbclid = tracking_data.get("fbclid")
-    gclid = tracking_data.get("gclid")
+    utm_source = None
+    utm_medium = None
+    utm_campaign = None
+    utm_term = None
+    utm_content = None
+    fbclid = None
+    gclid = None
+
+    if tracking_data:
+        utm_source = tracking_data.get("utm_source")
+        utm_medium = tracking_data.get("utm_medium")
+        utm_campaign = tracking_data.get("utm_campaign")
+        utm_term = tracking_data.get("utm_term")
+        utm_content = tracking_data.get("utm_content")
+        fbclid = tracking_data.get("fbclid")
+        gclid = tracking_data.get("gclid")
 
     # Parse submission timestamp
     submission_time = data.get("timestamp")
@@ -1009,11 +1016,21 @@ async def handle_wix_form(
     """
     try:
         return await process_wix_form_submission(request, data, db_session)
+    except IntegrityError as e:
+        # Handle duplicate submissions gracefully - likely same form sent twice
+        # or race condition between workers
+        if "unique constraint" in str(e).lower() and "unique_id" in str(e).lower():
+            _LOGGER.warning(
+                "Duplicate submission detected (unique_id already exists). "
+                "Returning success to prevent retry. Error: %s",
+                str(e),
+            )
+            # Return success since the reservation already exists
+            return {"status": "success", "message": "Reservation already processed"}
+        # Re-raise if it's a different integrity error
+        raise
     except Exception as e:
-        _LOGGER.exception("Error in handle_wix_form: %s", e)
-
-        # Log error data to file asynchronously
-        import traceback
+        _LOGGER.exception("Error in handle_wix_form")
 
         log_entry = {
             "timestamp": datetime.now().isoformat(),
@@ -1021,7 +1038,6 @@ async def handle_wix_form(
             "headers": dict(request.headers),
             "data": data,
             "error": str(e),
-            "traceback": traceback.format_exc(),
         }
 
         # Use asyncio to run file I/O in thread pool to avoid blocking
@@ -1298,14 +1314,14 @@ async def handle_xml_upload(
     <status>success</status>
     <message>Conversion data processed successfully</message>
     <stats>
-        <totalReservations>{processing_stats['total_reservations']}</totalReservations>
-        <deletedReservations>{processing_stats['deleted_reservations']}</deletedReservations>
-        <totalDailySales>{processing_stats['total_daily_sales']}</totalDailySales>
-        <matchedToReservation>{processing_stats['matched_to_reservation']}</matchedToReservation>
-        <matchedToCustomer>{processing_stats['matched_to_customer']}</matchedToCustomer>
-        <matchedToHashedCustomer>{processing_stats['matched_to_hashed_customer']}</matchedToHashedCustomer>
-        <unmatched>{processing_stats['unmatched']}</unmatched>
-        <errors>{processing_stats['errors']}</errors>
+        <totalReservations>{processing_stats["total_reservations"]}</totalReservations>
+        <deletedReservations>{processing_stats["deleted_reservations"]}</deletedReservations>
+        <totalDailySales>{processing_stats["total_daily_sales"]}</totalDailySales>
+        <matchedToReservation>{processing_stats["matched_to_reservation"]}</matchedToReservation>
+        <matchedToCustomer>{processing_stats["matched_to_customer"]}</matchedToCustomer>
+        <matchedToHashedCustomer>{processing_stats["matched_to_hashed_customer"]}</matchedToHashedCustomer>
+        <unmatched>{processing_stats["unmatched"]}</unmatched>
+        <errors>{processing_stats["errors"]}</errors>
     </stats>
 </response>"""