Occasionally we will not get work orders entered as finished product before we ship it.  We were invoicing last week and had this happen.  We tried to do the Edit piece like when you do have a backorder, only trying to put the Ship Qty in and that did not work.  Hector suggested going to Sales > AR > A for that particular customer and check the box Allow Backorders.  That worked, but it really wasn’t a back order.  Is there something else that should be changed to allow us to ship a quantity we do not have on hand?
 
We are using Evo View 04/04/13 SP2
 
Thanks!

The AR-A  Allow Backorders by default should be Y.  You should only change it to N for a customer that never wants anything backordered and wants the balance of an order cancelled once the first shipment goes out.