Solution : https://service.sap.com/sap/support/notes/899614 (SAP Service marketplace login required)
Key words :
bapi-compatible results return structure, triggering exceptions additional export parameter, access sap application servers, import parameter called use_bapi_return, system communicates error messages, export parameter return, additional import parameter, sap application server, fills return structure, use_bapi_return type spec
Related Notes :
| 980332 | UME: Incorrect message for errors when you change a password |
| 934551 | Password change in UME for ABAP users does not take effect |
| 901645 | Password change by user: "PASSWORD_NOT_ALLOWED" |
| 624635 |