Re inbound IDOC types and inbound function modules for invoice posting
Our invoices are scanned and will come from a third party system into sap. So the invoices sent by the third party system will have line items in the GL tab ,in addition to the line items in the po reference tab of the miro screen. so we have to carry GL accounts ,cost centers and the amount in the IDOC and the function module has to post the GL tab line items. The problem here is, usually invoice 01 and the posting modules IDOC_INPUT_INVOICE_MM cannot handle line items in the GL tab according to my knowledge. the current function modules can handle only po reference items. Please let me know the different ways of sending the gl tab line items over the idoc and the posting modules that can handle it( like idoc extensions and custom code ).