Solution : https://service.sap.com/sap/support/notes/511020 (SAP Service marketplace login required)
Key words :
function module rp_remittance_acknowledgement replace field regup_bf-xblnr, function modules replace data element xblnr, external reference document number reason, bsis replace data element xblnr, data element xblnr1, field regup-xblnr, fi_document_read j_1b_im_nf_check_return_md my_material_price_change, rbkpv-xblnr, extended xblnr, incoming invoice
Related Notes :
| 437599 | Extended reference document number in IS-PS 4.62 |