We just went live with EDI 810 invoices this week, and are running into an issue with the default handling code for these invoices. We set the handling code to default on the AP10 screen to MAT, but occasionally we get a SRVC invoice on the same EDI file as the MAT invoices. It's a real pain point to have to go in and delete the SRVC invoice and then manually rebuild it. Is there anyone else who went through this, and if so, what did you do to get the handling codes to default?