How To Fix SNC053 - External identity (type &1, assignment &3) entered for user &2

SAP Error Message - Details

• Message type: E = Error

• Message class: SNC - Secure Network Communication, SNC

• Message number: 053

• Message text: External identity (type &1, assignment &3) entered for user &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SNC053 - External identity (type &1, assignment &3) entered for user &2 ?

  The SAP error message SNC053 indicates that there is an issue with the external identity assigned to a user in the context of Secure Network Communications (SNC). This error typically arises when there is a mismatch or misconfiguration related to the external identity of a user in the SNC setup.
  Cause:
  
  Invalid External Identity: The external identity specified for the user does not match the expected format or is not recognized by the SNC system.
  Configuration Issues: There may be a misconfiguration in the SNC settings, such as incorrect entries in the user mapping or the SNC profile.
  User Assignment Issues: The user may not be properly assigned to the external identity in the system, or the assignment may not exist in the SNC configuration.
  SNC Library Issues: There could be issues with the SNC library or the underlying security infrastructure that is being used.
  
  Solution:
  
  Check External Identity: Verify that the external identity (type &1, assignment &3) for user &2 is correctly defined in the SNC configuration. Ensure that it matches the expected format and is valid.
  Review User Mapping: Go to the SNC configuration in the SAP system and check the user mapping settings. Ensure that the user is correctly assigned to the external identity.
  SNC Profile Configuration: Review the SNC profile settings in the SAP system. Ensure that the SNC parameters are correctly set up and that the external identity is properly configured.
  Consult Documentation: Refer to the SAP documentation for SNC configuration to ensure that all steps have been followed correctly.
  Check SNC Library: Ensure that the SNC library being used is correctly installed and configured. If necessary, update or reinstall the library.
  Test Connectivity: After making changes, test the connectivity to ensure that the SNC setup is functioning as expected.
  
  Related Information:
  
  SNC Configuration: The configuration of Secure Network Communications in SAP involves setting up the SNC parameters in the instance profile and ensuring that the appropriate libraries are installed.
  User Management: User management in SAP can involve various roles and authorizations, and it is essential to ensure that users are correctly assigned to roles that allow them to use SNC.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to SNC053 or provide additional troubleshooting steps.
  SNC Documentation: Review the official SAP documentation on SNC for detailed guidance on configuration and troubleshooting.
  
  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.