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2033966 - Inverse mapping for user [] not possible. Check user mapping configuration.


Configured SSO from ticket issuing JAVA system to ticket accepting JAVA system, however SSO fails. Follow note 1045019 - Web diagtool for collecting traces example 3 to get debug trace in ticket accepting JAVA system, could find below error:


Inverse mapping for user [] not possible. Check user mapping configuration.

User: N/A
IP Address:
Authentication Stack: ticket
Authentication Stack Properties:

Login Module                                                               Flag        Initialize  Login      Commit     Abort      Details
1.             SUFFICIENT  ok          exception             true Inverse user mapping failed.
        #1 trusteddn1 = OU=J2EE,CN=Q10
        #2 trustediss1 = OU=J2EE,CN=Q10
        #3 trustedsys1 = Q10,000
        #4 = true
4.   REQUIRED    ok          false                 false
5.               REQUIRED    ok          false                 true
        #1 = true
No logon policy was applied




  • SAP NetWeaver all releases
  • SAP Composition Environment all releases


SAP Composition Environment all versions ; SAP NetWeaver all versions


Inverse mapping for user [] not possible, Check user mapping configuration,, Inverse user mapping failed, fpn, register, sso, login.ticket_portalid, sso, mysapsso2, portal user id, abap user id, R/3 user,, ume.r3.mastersystem, ume.r3.mastersystem.uid.mode, NULL, empty abap user id , KBA , BC-JAS-SEC-LGN , Logon, SSO , Problem

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