How To Fix SAML2144 - Unknown trusted entity type: '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: SAML2 - SAML2 Nachrichten

• Message number: 144

• Message text: Unknown trusted entity type: '&1'

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SAML2144 - Unknown trusted entity type: '&1' ?

  The SAP error message SAML2144 indicates that there is an issue with the configuration of a trusted entity in the context of SAML (Security Assertion Markup Language) authentication. Specifically, the error message states that the system encountered an "unknown trusted entity type" for the entity identified by &1.
  Cause:
  The error can occur due to several reasons:
  
  Incorrect Configuration: The trusted entity (such as an Identity Provider or Service Provider) may not be correctly configured in the SAP system.
  Unsupported Entity Type: The entity type specified in the configuration may not be recognized by the SAP system. This could happen if the entity type is misspelled or if it is not supported by the version of SAP you are using.
  Missing Metadata: The metadata for the trusted entity may be missing or incorrectly defined, leading to the system being unable to recognize the entity type.
  Version Mismatch: There may be a mismatch between the SAML versions supported by the SAP system and the entity being configured.
  
  Solution:
  To resolve the SAML2144 error, you can take the following steps:
  
  
  Check Configuration:
  
  Go to the SAML configuration in the SAP system (transaction code SAML2).
  Verify that the trusted entity is correctly defined and that all required fields are filled out properly.
  
  
  
  Validate Entity Type:
  
  Ensure that the entity type you are trying to configure is supported by your SAP version. Check the documentation for the correct entity types and their configurations.
  
  
  
  Review Metadata:
  
  If you are using metadata files for configuration, ensure that they are correctly formatted and contain the necessary information for the trusted entity.
  You can also try re-importing the metadata to ensure it is up to date.
  
  
  
  Check Logs:
  
  Review the SAP system logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  
  
  Consult Documentation:
  
  Refer to the official SAP documentation for SAML configuration to ensure that you are following the correct procedures and guidelines.
  
  
  
  Update SAP System:
  
  If you are using an older version of SAP, consider updating to a newer version that may have better support for SAML configurations.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above steps, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  SAML Configuration: Familiarize yourself with the SAML configuration in SAP, including how to set up Identity Providers (IdP) and Service Providers (SP).
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional 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 and resolve the cause of the SAML2144 error in your SAP system.