How To Fix SUSR_CERT134 - Explicit mapping

SAP Error Message - Details

• Message type: E = Error

• Message class: SUSR_CERT - User Certificates Administration

• Message number: 134

• Message text: Explicit mapping

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SUSR_CERT134 - Explicit mapping ?

  The SAP error message SUSR_CERT134 typically relates to issues with user authentication, specifically regarding the explicit mapping of users in the context of Single Sign-On (SSO) or when using certificates for authentication.
  Cause:
  The error message SUSR_CERT134 indicates that there is a problem with the mapping of a user to a certificate. This can occur in scenarios where:
  
  Certificate Mapping Issues: The system is unable to find a valid mapping between the user and the certificate being used for authentication.
  Missing or Incorrect Configuration: The configuration for user authentication via certificates may be incomplete or incorrect.
  User Not Found: The user attempting to log in may not exist in the system or may not have the necessary roles assigned.
  Expired or Invalid Certificate: The certificate being used may be expired or invalid.
  
  Solution:
  To resolve the SUSR_CERT134 error, you can follow these steps:
  
  
  Check User Mapping:
  
  Ensure that the user is correctly mapped to the certificate. This can be done in the SAP system by checking the user’s settings in transaction SU01 or SU10.
  Verify that the user exists in the system and has the correct roles and authorizations.
  
  
  
  Review Certificate Configuration:
  
  Check the configuration for certificate-based authentication in transaction STRUST. Ensure that the SSL server and client settings are correctly configured.
  Make sure that the certificate is correctly imported and that the mapping is set up properly.
  
  
  
  Validate the Certificate:
  
  Ensure that the certificate being used is valid and not expired. You can check the validity of the certificate in the certificate management tool or by using the appropriate commands in the operating system.
  
  
  
  Check Logs:
  
  Review the system logs (transaction SM21) and security audit logs (transaction SM20) for any additional error messages or warnings that may provide more context about the issue.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to certificate-based authentication and user mapping for any specific configurations or updates that may be required.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They may provide specific notes or patches that address the issue.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SU01: User Maintenance
  STRUST: Trust Manager
  SM21: System Log
  SM20: Security Audit Log
  
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  
  
  Documentation: Review the SAP Help Portal for documentation on user authentication and certificate management.
  
  
  By following these steps, you should be able to diagnose and resolve the SUSR_CERT134 error effectively.