Sales > Recording sales with insufficient on-hand item quantities > Build, buy or backorder items
If you attempt to record a sales invoice with an insufficient on-hand quantity (see ‘Complete the sale’ on page 68), and you don’t allow the recording of sales with insufficient quantities, the Backorder List window appears. In this window, you need to build or buy the required quantity, or create a customer sales order (backorder) for the unavailable quantity, before you can record the sale.
Before you can auto-build an item in the Backorder List window, you need to set up your item details. For more information, see ‘Auto-building items’ on page 166. If you want to record a bill using this window, you need to enter a default supplier for the item. For more information, see ‘Creating items’ on page 157.
