For warehouse delivery, you don't need to issue an outbound order, and then make an outbound order in the system ERP, but return it. Then, punch in the red letter, 1 open the supply chain button of ERP system, 2 click the inventory management button after entering the supply chain page, 3 click the outbound order button after entering the inventory management page, 4 click the red letter button after entering the outbound order page, 5 enter the red letter page and make the order, and return the goods to the original warehouse after completion.