I'm using Dynamics GP 10 and the webservice. I am creating a purchase order app that will allow adding an item to the purchase order, select the vendor, add purchaseorderline etc. The issue I have is that I get an error that there is no vendoritemnumber. This is because I have just added through integration manager all of the vendors, and items from an older system. That system has no vendoritemnumber connection. So I basically need to create it on the fly. But it errors out every time.
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