that is correct if you choose "drop ship" but the problem is that the system is populating the customer ship to code field in the header of the purchase order even though it is not a drop ship situation.
it seemingly should not be doing that but i tested it in 2013 R2, 2013, 2009 and 5.0 SP2 and it was doing it on all of them.
does anyone know why or is it just a long running issue that was not causing us problems until now.