OK, but please explain why I must "remove the line"?  The customer and the Vendor are the same company, and I have two separate profiles, a customer and a vendor. I understand how to connect the Project to the line item, however, some parts that would be covered under a warranty repair are also stock items that I would not order just one. Should I add an extra line to my PO and duplicate the part in the order so I can dedicate that part to the project, or is there another way?