I create a transaction in the Purchasing Invoice Entry Window (Purchasing > Transactions > Enter/Match Invoices). When I review the transaction in Table POP10300 I see that POPTYPE has a value of "2" (Invoice). I'm creating an interface using eConnect to mimic this result. This is, I want to create invoice transactions against Purchase Orders. However, according to the eConnect specification, the only valid POPTYPEs are 1 (Shipment) and 3 (Shipment/Invoice). When I attempt to specify a value of "2" for POPTYPE I get "the error Invalid POPTYPE". How do I do what I need to do? Thank you.