Solution : https://service.sap.com/sap/support/notes/118244 (SAP Service marketplace login required)
Key words :
additional key words sapliedi, function module idoc_input_invoic_fi, idoc type invoic01, flag 'parallel processing', update idoc', report rbdapp01, transferred individually, error occurs, posting interface, status 51 'error
Related Notes :
142642 | ALE inbound invoices FI:collective note f. INVOIC |
122362 | EDI-INVOIC: Document split/ processing credit memos |