Solution : https://service.sap.com/sap/support/notes/1625072 (SAP Service marketplace login required)
Key words : 
end user authentication system, end user logon application, end user logon reason, rfc error message, symptom set, terms ac10, access request 2010, upper case, solution implement, correction instructions
Related Notes : 
       
| 1607067 | Master Note for SAP Access Control 10.0 - Support Pack 6 |