What does the term "Code 50" signify at Lowe‘s stores

When a Code 50 is announced at Lowe‘s, it means that additional help is needed at the loading bay to handle a large consignment. Employees who are available will be asked to assist in offloading the shipment. This code is a standard procedure at all Lowe‘s stores and is programmed into the intercom system. Other stores may have their own unique set of codes.