How To Fix CLB2654 - Unable to retrieve SAML2 assertion that can be sent to target

SAP Error Message - Details

• Message type: E = Error

• Message class: CLB2 - SAIL: Common messages

• Message number: 654

• Message text: Unable to retrieve SAML2 assertion that can be sent to target

What causes this issue?

A method requires an SAML assertion be sent to the service provider.
This assertion could not be retrieved from the system.

System Response

The method in progress is cancelled.

How to fix this error?

Check the Customizing in the backend system for the SAML setup.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CLB2654 - Unable to retrieve SAML2 assertion that can be sent to target ?

  The SAP error message CLB2654 indicates that the system is unable to retrieve a SAML2 assertion that can be sent to the target system. This error typically occurs in scenarios involving Single Sign-On (SSO) configurations using SAML (Security Assertion Markup Language) for authentication.
  Causes:
  
  Configuration Issues: There may be misconfigurations in the SAML settings, such as incorrect Identity Provider (IdP) or Service Provider (SP) configurations.
  Certificate Problems: The certificates used for signing or encrypting SAML assertions may be expired, invalid, or not properly configured.
  Network Issues: There could be network connectivity problems between the SAP system and the IdP or the target system.
  User Authorization: The user may not have the necessary authorizations to retrieve the SAML assertion.
  SAML Assertion Issues: The SAML assertion itself may not be generated correctly due to issues in the IdP or the configuration of the SAML service.
  
  Solutions:
  
  
  Check SAML Configuration:
  
  Verify the SAML configuration in the SAP system, ensuring that the IdP and SP settings are correct.
  Ensure that the endpoints for the IdP and SP are correctly defined.
  
  
  
  Validate Certificates:
  
  Check the validity of the certificates used for SAML assertions. Ensure they are not expired and are correctly imported into the SAP system.
  If necessary, update the certificates and reconfigure the SAML settings.
  
  
  
  Network Connectivity:
  
  Test the network connectivity between the SAP system and the IdP. Ensure that there are no firewall rules or network issues blocking the communication.
  
  
  
  User Authorization:
  
  Ensure that the user attempting to authenticate has the necessary roles and authorizations to access the target system.
  
  
  
  Review Logs:
  
  Check the SAP system logs (transaction codes like SLG1) for more detailed error messages that can provide additional context on the issue.
  Review the IdP logs to see if there are any errors or warnings related to the SAML assertion generation.
  
  
  
  Test SSO Configuration:
  
  Use tools or test scripts to validate the SSO configuration and ensure that SAML assertions can be generated and sent correctly.
  
  
  
  Related Information:
  
  Documentation: Refer to SAP's official documentation on SAML and SSO configurations for detailed steps and best practices.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide patches related to SAML configurations.
  Community Forums: Engage with SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to diagnose and resolve the CLB2654 error in your SAP environment.