diff --git a/src/asquare.py b/src/asquare.py
index 797f5ad..afe24a1 100644
--- a/src/asquare.py
+++ b/src/asquare.py
@@ -319,6 +319,10 @@ async def update_itm(item_id: str, lego_set: dict, item_data: dict = None):
                     "variations": [variation_obj],
                 },
             }
+            
+            upsert_body = {
+                "idempotency_key": str(uuid.uuid4()),
+                "object": item_obj,
             }
 
             # Remove None values