How To Fix SAML2014 - Format '&1' is not supported for user assignment

SAP Error Message - Details

• Message type: E = Error

• Message class: SAML2 - SAML2 Nachrichten

• Message number: 014

• Message text: Format '&1' is not supported for user assignment

Self-Explanatory Message

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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 SAML2014 - Format '&1' is not supported for user assignment ?

  The SAP error message SAML2014 indicates that there is an issue with the format of the user assignment in the context of SAML (Security Assertion Markup Language) authentication. Specifically, the error message states that the format provided (denoted as &1) is not supported for user assignment.
  Cause:
  The error typically arises due to one of the following reasons:
  
  
  Unsupported User Format: The user identifier format being used in the SAML assertion does not match the expected formats configured in the SAP system. For example, if the system expects a specific format (like email, username, or a specific attribute) and receives something else, this error will occur.
  
  
  Configuration Issues: There may be misconfigurations in the SAML settings, such as the attribute mappings or the expected user identifier format.
  
  
  SAML Assertion Issues: The SAML assertion being sent from the Identity Provider (IdP) may not be correctly formatted or may not include the necessary attributes that SAP expects.
  
  
  Solution:
  To resolve the SAML2014 error, you can take the following steps:
  
  
  Check User Identifier Format:
  
  Verify the format of the user identifier being sent in the SAML assertion. Ensure that it matches the expected format configured in the SAP system.
  Common formats include email addresses, usernames, or specific user IDs.
  
  
  
  Review SAML Configuration:
  
  Go to the SAML configuration settings in your SAP system (usually found in the SAP NetWeaver Administrator or the relevant configuration area).
  Check the attribute mappings and ensure that the user identifier is correctly mapped to the expected attribute in the SAML assertion.
  
  
  
  Inspect SAML Assertion:
  
  Use tools like SAML Tracer (a browser extension) to capture and inspect the SAML assertion being sent from the IdP.
  Ensure that the assertion contains the correct attributes and that they are formatted correctly.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation for SAML configuration to ensure that all settings are correctly applied.
  Check for any specific requirements or limitations regarding user identifiers in the version of SAP you are using.
  
  
  
  Test with Different User Formats:
  
  If possible, test with different user formats to see if the issue persists. This can help identify if the problem is specific to a certain format.
  
  
  
  Contact Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. Provide them with details of the error and the configurations you have in place.
  
  
  
  Related Information:
  
  SAML: SAML is an XML-based framework for exchanging authentication and authorization data between parties, particularly between an IdP and a service provider (SP) like SAP.
  SAP NetWeaver: The platform that often handles SAML configurations in SAP environments.
  Identity Provider (IdP): The system that provides user authentication and sends SAML assertions to the service provider.
  
  By following these steps, you should be able to identify and resolve the cause of the SAML2014 error in your SAP environment.