EDI Invoice vs Sales Order

I have taken over an IT Dept with several E9 issues, we receive an order via EDI with 9 line items but due to size of the shipment we split the order and when its time to invoice it says 15 line items so when the EDI file goes back it gets rejected because they are expecting 9 line items, does anyone know of a work around besides manually editing the EDI…Thanks

We have similar situation sometimes. However, our third party service provider converts the Epicor EDI files to the customer EDI formats and groups them by the PO line numbers.

Vinay Kamboj