Solution : https://service.sap.com/sap/support/notes/1244059 (SAP Service marketplace login required)
Key words :
function module /1bea/crmb_bd_o_cancel, copy requirements reason, attached correction instruction, bd function group, rejected origin items, billing items marked, function module, line items, cancelled items, billing document
Related Notes :
630914 | Regenerating individual objects in a BE application |