Solution : https://service.sap.com/sap/support/notes/826467 (SAP Service marketplace login required)
Key words :
attached source code corrections, source code corrections, required entry fields, ebpxml outgoing message, filter values po, delivered badi definition, 'bbp_search_message_out' filter type, filter type, values 'po', 'filter-dependent'
Related Notes :
| 878491 | PO Output is failing when using BADI 'BBP_EBPXML_OUT_BADI' |
| 856351 | Supporting the Business Connector (BC) in the SRM system |