How To Fix SAML2015 - Defederation of format '&1' is not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: SAML2 - SAML2 Nachrichten

• Message number: 015

• Message text: Defederation of format '&1' is not supported

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SAML2015 - Defederation of format '&1' is not supported ?

  The SAP error message SAML2015 indicates that there is an issue with the defederation process in the context of SAML (Security Assertion Markup Language) authentication. Specifically, the message states that the defederation of a certain format is not supported. This typically occurs when there is an attempt to process a SAML assertion or response that is not in a recognized or supported format.
  Cause:
  
  Unsupported Format: The SAML assertion or response being processed is in a format that the SAP system does not support. This could be due to a mismatch in the expected SAML version or profile.
  Configuration Issues: There may be misconfigurations in the SAML settings, such as incorrect endpoints, certificates, or metadata.
  Version Mismatch: The SAML version used by the Identity Provider (IdP) may not be compatible with what the SAP system expects.
  Incorrect Assertion: The SAML assertion may be malformed or missing required elements.
  
  Solution:
  
  
  Check SAML Configuration: Review the SAML configuration in the SAP system. Ensure that the settings for the Identity Provider (IdP) and Service Provider (SP) are correctly configured.
  
  Verify the SAML metadata, endpoints, and certificates.
  Ensure that the SAML version and profiles are compatible.
  
  
  
  Validate SAML Assertions: Use tools to validate the SAML assertions being sent from the IdP. Ensure that they conform to the expected format and contain all required attributes.
  
  
  Update SAP System: If the SAP system is outdated, consider applying the latest patches or updates that may include support for newer SAML formats.
  
  
  Consult Documentation: Refer to SAP documentation for SAML configuration and supported formats. This can provide insights into what formats are acceptable and how to configure them correctly.
  
  
  Logs and Traces: Check the SAP system logs and traces for more detailed error messages that can provide additional context about the issue.
  
  
  Contact Support: If the issue persists after checking configurations and validating assertions, consider reaching out to SAP support for further assistance.
  
  
  Related Information:
  
  SAML Versions: Familiarize yourself with the different versions of SAML (SAML 1.1, SAML 2.0) and their respective features.
  SAP Notes: Look for relevant SAP Notes that may address known issues or provide guidance on SAML configurations.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the root cause of the SAML2015 error and implement a solution to resolve it.