UFIDA U8 issues a sales invoice when the inventory is sufficient, prompting how to solve the shortage of inventory.

Dear, the reason may be that your warehouse inventory is not enough, or some of the inventory in the warehouse has been booked, and the customer has not paid after the time, so you can't return the inventory. If your company is very concerned about internal control and doesn't want negative inventory shipment, then you can only wait for the inventory to increase and continue to operate. If your company doesn't care about this, one way is to fill in other receipt documents or purchase receipt documents to increase inventory before sales and shipment. The second method: in the option settings under inventory management, inventory accounting and sales management, modify the settings, check the option of negative inventory issue, or set the quantity of negative inventory, and then fill in the invoice again.