Solution : https://service.sap.com/sap/support/notes/86053 (SAP Service marketplace login required)
Key words :
field reference action bkpf-awtyp = 'bkpff', additional key words ale, system posts fi document, distributed general ledger, internal number assignment, external number assignment, function group 'faci', function module 'set_rwin_ale_flag', define function module, activate function module
Related Notes :
| 103937 | FI-ALE: Error because of missing tax code |
| 82516 | ALE: area customer/vendor line is incorrect |
| 47410 | ALE FIDCMT01: FI distribution questions & problems |