Solution : https://service.sap.com/sap/support/notes/428588 (SAP Service marketplace login required)
Key words :
additional key words rfc, preventing maintained rfc destinations, user master record, frequently unintentionally locked, incorrect logon attempt, incorrect rfc logons, srfc function group, valid logon data, rfc logon screen, application function module
Related Notes :
| 662390 | User lock with RFC logon without password |
| 402639 |