diff --git a/src/alpine_bits_python/free_rooms_action.py b/src/alpine_bits_python/free_rooms_action.py
index c5b102b..645c411 100644
--- a/src/alpine_bits_python/free_rooms_action.py
+++ b/src/alpine_bits_python/free_rooms_action.py
@@ -290,8 +290,10 @@ class FreeRoomsAction(AlpineBitsAction):
             # Validate standard inventory entries
             inv_type_code = (sac.inv_type_code or "").strip()
             if not inv_type_code:
+                error_message = "InvTypeCode is required unless AllInvCode=\"true\" or similar truthy values"
+                _LOGGER.info(error_message)
                 raise FreeRoomsProcessingError(
-                    "InvTypeCode is required unless AllInvCode=\"true\"",
+                    error_message,
                     HttpStatusCode.BAD_REQUEST,
                 )
 
@@ -301,8 +303,10 @@ class FreeRoomsAction(AlpineBitsAction):
             # Check for overlap with closing seasons
             for closing_start, closing_end in closing_season_ranges:
                 if self._date_ranges_overlap(start_date, end_date, closing_start, closing_end):
+                    error_message = f"Inventory entry ({start_date} to {end_date}) overlaps with closing season ({closing_start} to {closing_end})"
+                    _LOGGER.info(error_message)
                     raise FreeRoomsProcessingError(
-                        f"Inventory entry ({start_date} to {end_date}) overlaps with closing season ({closing_start} to {closing_end})",
+                        error_message,
                         HttpStatusCode.BAD_REQUEST,
                     )