How To Fix SUSR_CERT101 - Select an explicit mapping

SAP Error Message - Details

• Message type: E = Error

• Message class: SUSR_CERT - User Certificates Administration

• Message number: 101

• Message text: Select an explicit mapping

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SUSR_CERT101 - Select an explicit mapping ?

  The SAP error message SUSR_CERT101: Select an explicit mapping typically occurs in the context of user management and authentication, particularly when dealing with certificate-based authentication in SAP systems. This error indicates that the system requires a specific mapping between the user and the certificate being used for authentication, but such a mapping has not been defined.
  Cause:
  The error can arise due to several reasons:
  
  Missing Mapping: There is no explicit mapping defined between the user and the certificate in the system.
  Incorrect Configuration: The configuration for certificate authentication may not be set up correctly.
  User Not Found: The user associated with the certificate does not exist in the SAP system.
  Multiple Certificates: If multiple certificates are presented, the system may not know which one to use for authentication.
  
  Solution:
  To resolve the SUSR_CERT101 error, you can follow these steps:
  
  
  Define User Mapping:
  
  Go to transaction code SU01 (User Maintenance).
  Enter the user ID that is supposed to be mapped to the certificate.
  Navigate to the Logon Data tab.
  Ensure that the certificate is correctly mapped to the user. You may need to add the certificate details if they are missing.
  
  
  
  Check Certificate Configuration:
  
  Ensure that the SSL configuration is correctly set up in the SAP system.
  Check the transaction STRUST to manage SSL certificates and ensure that the correct certificates are imported and trusted.
  
  
  
  Review User Existence:
  
  Verify that the user account exists in the system and is active.
  If the user does not exist, create a new user with the appropriate roles and permissions.
  
  
  
  Check for Multiple Certificates:
  
  If multiple certificates are being used, ensure that the correct one is being presented during the authentication process.
  You may need to configure the system to handle multiple certificates appropriately.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to certificate-based authentication for any specific configurations or requirements that may apply to your version of SAP.
  
  
  
  Testing:
  
  After making the necessary changes, test the authentication process again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  SU01: User Maintenance
  STRUST: SSL Server Standard Trust
  
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or fixes related to certificate authentication issues.
  Security Settings: Review the security settings in your SAP system to ensure they align with your organization's policies and best practices for certificate management.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.