How do I create a backorder? When an order has not been delivered in full, a backorder can be created for the non-delivered parts.  Mark an order line as  Delivered  (status name depends on the configuration). Enter the number of delivered parts and any additional delivery comments. Click on  Ok. Click on  Make backorder.   A new order line will be created in the existing order with the number of non-delivered parts. In addition to creating a backorder, you can also skip the difference. This option allows you to move the order to the next status without creating a backorder.