Solution : https://service.sap.com/sap/support/notes/589100 (SAP Service marketplace login required)
Key words :
->technical settings-> business transaction events / event control, -mentioned btes return data, general ledger update, create message number 016, message class bca_basis, -> activate function modules, define function modules, -mentioned btes, function modules, function module
Related Notes :
| 305789 | Creating messages |