Update move_credit_limit_to_customer_credit_limit.py
diff --git a/erpnext/patches/v12_0/move_credit_limit_to_customer_credit_limit.py b/erpnext/patches/v12_0/move_credit_limit_to_customer_credit_limit.py
index ca01c60..30acfe6 100644
--- a/erpnext/patches/v12_0/move_credit_limit_to_customer_credit_limit.py
+++ b/erpnext/patches/v12_0/move_credit_limit_to_customer_credit_limit.py
@@ -36,4 +36,4 @@
 				'bypass_credit_limit_check': record.bypass_credit_limit_check_at_sales_order,
 				'company': company.name
 			})
-		customer.save()
\ No newline at end of file
+		customer.db_insert()