diff --git a/oscar_odin/mappings/constants.py b/oscar_odin/mappings/constants.py
index 377b1ba..9793cc2 100644
--- a/oscar_odin/mappings/constants.py
+++ b/oscar_odin/mappings/constants.py
@@ -104,7 +104,7 @@
 MODEL_IDENTIFIERS_MAPPING = {
     Category: ("code",),
     Product: ("upc",),
-    StockRecord: ("partner_id", "partner_sku"),
+    StockRecord: ("partner_sku",),
     ProductClass: ("slug",),
     ProductImage: ("code",),
     Partner: ("slug",),