diff --git a/src/inventory/application/port/output/db/errors.rs b/src/inventory/application/port/output/db/errors.rs
index 5066b15..66a7560 100644
--- a/src/inventory/application/port/output/db/errors.rs
+++ b/src/inventory/application/port/output/db/errors.rs
@@ -10,7 +10,10 @@ pub type InventoryDBResult<V> = Result<V, InventoryDBError>;
 #[derive(Debug, Display, Clone, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
 pub enum InventoryDBError {
     DuplicateCategoryName,
+    DuplicateCategoryID,
     DuplicateStoreName,
     DuplicateStoreID,
+    DuplicateProductName,
+    DuplicateProductID,
     InternalError,
 }