How To Fix SUSR_CERT138 - No mapping

SAP Error Message - Details

• Message type: E = Error

• Message class: SUSR_CERT - User Certificates Administration

• Message number: 138

• Message text: No 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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SUSR_CERT138 - No mapping ?

  The SAP error message SUSR_CERT138 typically indicates that there is no mapping found for a user certificate in the system. This error often arises in the context of user authentication, particularly when dealing with digital certificates in SAP systems.
  Cause:
  
  Missing Mapping: The user certificate presented does not have a corresponding entry in the SAP user master data. This means that the system cannot find a user account that matches the certificate.
  Incorrect Configuration: The configuration for the certificate mapping may not be set up correctly in the system.
  Expired or Invalid Certificate: The certificate being used may be expired or invalid, leading to the inability to map it to a user.
  User Not Created: The user associated with the certificate may not exist in the SAP system.
  
  Solution:
  
  
  Check User Master Data:
  
  Ensure that the user associated with the certificate exists in the SAP system.
  Verify that the user has the correct roles and authorizations.
  
  
  
  Certificate Mapping:
  
  Go to transaction SU01 (User Maintenance) and check the user’s settings.
  Ensure that the certificate is correctly mapped to the user. This can be done in the "Logon Data" tab where you can see the certificate details.
  
  
  
  Configuration Settings:
  
  Check the configuration for the certificate mapping in the system. This can be done in transaction STRUST (Trust Manager).
  Ensure that the SSL settings and the certificate authorities are correctly configured.
  
  
  
  Certificate Validity:
  
  Verify that the certificate being used is valid and not expired. You can check the certificate details in the browser or the application that is using the certificate.
  
  
  
  Logs and Traces:
  
  Check the system logs (transaction SM21) and security audit logs (transaction SM20) for any additional error messages or warnings that could provide more context about the issue.
  
  
  
  Consult Documentation:
  
  Refer to SAP Notes and documentation related to user authentication and certificate management for any specific instructions or updates.
  
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Security Configuration: Familiarize yourself with the security configuration in SAP, especially regarding user authentication methods and certificate management.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.