How To Fix SAML2104 - The validity of the HoK assertion is not in the defined period of &1 min

SAP Error Message - Details

• Message type: E = Error

• Message class: SAML2 - SAML2 Nachrichten

• Message number: 104

• Message text: The validity of the HoK assertion is not in the defined period of &1 min

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SAML2104 - The validity of the HoK assertion is not in the defined period of &1 min ?

  The SAP error message SAML2104 indicates that there is an issue with the validity period of a Holder of Key (HoK) assertion in a SAML (Security Assertion Markup Language) authentication process. This error typically arises when the assertion's validity period does not align with the expected time frame defined in the SAP system configuration.
  Cause:
  The error occurs when the SAML assertion's validity period is either too short or too long compared to the configured time limit in the SAP system. The assertion must be valid within a specific time window, and if it falls outside this window, the system will reject it, leading to the SAML2104 error.
  Solution:
  To resolve the SAML2104 error, you can take the following steps:
  
  
  Check the Assertion Validity Period:
  
  Review the SAML assertion being sent to the SAP system. Ensure that the NotBefore and NotOnOrAfter timestamps are set correctly and that they fall within the expected time frame.
  
  
  
  Adjust SAP Configuration:
  
  In the SAP system, you can adjust the validity period settings for SAML assertions. This is typically done in the SAML configuration settings. Look for parameters related to assertion validity, such as SAML Assertion Validity Period, and ensure they match the expected values of the assertions being sent.
  
  
  
  Synchronize Clocks:
  
  Ensure that the clocks on the Identity Provider (IdP) and the SAP system are synchronized. If there is a significant time difference between the two systems, it can lead to assertions being considered invalid.
  
  
  
  Review IdP Configuration:
  
  If you have access to the Identity Provider, check its configuration to ensure that it is generating assertions with the correct validity period. Adjust the settings if necessary.
  
  
  
  Testing:
  
  After making changes, test the SAML authentication process again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  SAML Assertions: These are XML documents that contain statements about a subject (user) and are used for authentication and authorization.
  Holder of Key (HoK): This is a type of SAML assertion that requires the subject to possess a cryptographic key, which adds an additional layer of security.
  SAP Notes: Check SAP Notes for any specific patches or updates related to SAML authentication issues, as they may provide additional guidance or fixes.
  
  If the problem persists after following these steps, consider reaching out to your SAP support team or consulting the SAP Community for further assistance.