When you manually change the delivery type to direct delivery on the SO line, the system automatically changes the warehouse on the SO line to the direct delivery warehouse, setup on the item. The same should happen when you click the Create direct delivery PO button and flag lines for direct delivery. Currently this does not happen, and both the SO lines and PO lines have the wrong warehouse (in many cases, this is an advanced WHS, that does not support Direct deliveries). Hence, a ‘corrupt’ situation is created and the whole process needs to be re-done, which is a real pain in a live environment (the PO may already have been sent to the supplier, extra work, etc… )