How To Fix SAML2084 - Validation of the SAML 2 session in client &1 failed

SAP Error Message - Details

• Message type: E = Error

• Message class: SAML2 - SAML2 Nachrichten

• Message number: 084

• Message text: Validation of the SAML 2 session in client &1 failed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SAML2084 - Validation of the SAML 2 session in client &1 failed ?

  The SAP error message SAML2084 indicates that there is a failure in the validation of the SAML 2.0 session for a specific client. This error typically arises in scenarios involving Single Sign-On (SSO) configurations using SAML (Security Assertion Markup Language) for authentication.
  Causes of SAML2084
  
  Session Expiration: The SAML session may have expired, leading to a failure in validation.
  Invalid SAML Assertion: The SAML assertion may be malformed or not conforming to the expected structure.
  Clock Skew: There may be a time synchronization issue between the Identity Provider (IdP) and the Service Provider (SP), causing the assertion to be considered invalid.
  Configuration Issues: Incorrect configuration settings in the SAML setup, such as incorrect entity IDs, certificates, or endpoints.
  User Not Found: The user associated with the SAML assertion may not exist in the target SAP system.
  Network Issues: Connectivity problems between the SAP system and the IdP can also lead to this error.
  
  Solutions
  
  Check Session Validity: Ensure that the SAML session has not expired. If it has, re-authenticate the user.
  Validate SAML Assertion: Use tools to validate the SAML assertion being sent from the IdP to ensure it is correctly formatted and contains the necessary claims.
  Synchronize Clocks: Ensure that the system clocks of the IdP and SP are synchronized. This can often be done using NTP (Network Time Protocol).
  Review Configuration: Double-check the SAML configuration settings in both the SAP system and the IdP. Ensure that entity IDs, certificates, and endpoints are correctly configured.
  User Mapping: Verify that the user in the SAML assertion exists in the SAP system and that the user mapping is correctly set up.
  Check Network Connectivity: Ensure that there are no network issues preventing communication between the SAP system and the IdP.
  
  Related Information
  
  SAML Documentation: Review the official SAML documentation for details on how assertions should be structured and validated.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide patches related to SAML authentication.
  Logs and Traces: Enable detailed logging for SAML authentication in SAP to capture more information about the error. This can help in diagnosing the issue.
  Testing Tools: Use SAML testing tools (like SAML-tracer or online SAML validators) to inspect the SAML assertions being exchanged.
  
  By following these steps, you should be able to identify the root cause of the SAML2084 error and implement the necessary solutions to resolve it.