diff --git a/server/AyaNova/biz/PartWarehouseBiz.cs b/server/AyaNova/biz/PartWarehouseBiz.cs
index 55426a1c..4649f7f6 100644
--- a/server/AyaNova/biz/PartWarehouseBiz.cs
+++ b/server/AyaNova/biz/PartWarehouseBiz.cs
@@ -155,9 +155,7 @@ namespace AyaNova.Biz
                         AddError(ApiErrorCode.NOT_FOUND);
                         return false;
                     }
-                    ValidateCanDelete(dbObject);
-                    if (HasErrors)
-                        return false;
+                    await ValidateCanDelete(dbObject);                   
                     if (HasErrors)
                         return false;
                     ct.PartWarehouse.Remove(dbObject);
@@ -240,7 +238,6 @@ namespace AyaNova.Biz
                 }
             }
 
-
             //Any form customizations to validate?
             var FormCustomization = await ct.FormCustom.AsNoTracking().SingleOrDefaultAsync(x => x.FormKey == AyaType.PartWarehouse.ToString());
             if (FormCustomization != null)
@@ -253,18 +250,26 @@ namespace AyaNova.Biz
                 //validate custom fields
                 CustomFieldsValidator.Validate(this, FormCustomization, proposedObj.CustomFields);
             }
-
         }
 
-        private void ValidateCanDelete(PartWarehouse inObj)
+        private async Task ValidateCanDelete(PartWarehouse inObj)
         {
-            //whatever needs to be check to delete this object
-
+            
             //Can't delete the default warehouse
             if (inObj.Id == 1)
             {
                 AddError(ApiErrorCode.INVALID_OPERATION, "generalerror", "Default part warehouse can not be deleted");
+                return;//nothing more need be checked this is completetly disqualifying
             }
+
+            //FOREIGN KEY CHECKS
+
+            //PartInventory record?
+            if (await ct.PartInventory.AnyAsync(m => m.PartWarehouseId == inObj.Id))
+            {
+               AddError(ApiErrorCode.VALIDATION_REFERENTIAL_INTEGRITY, "generalerror", "LT:PartInventory");
+            }
+
         }