How To Fix SAML011 - Error when logging on for external ID "&1": &2

SAP Error Message - Details

• Message type: E = Error

• Message class: SAML - Messages for SAML

• Message number: 011

• Message text: Error when logging on for external ID "&1": &2

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 SAML011 - Error when logging on for external ID "&1": &2 ?

  The SAP error message SAML011 typically occurs during the Single Sign-On (SSO) process when there is an issue with the SAML (Security Assertion Markup Language) authentication. The error message format is usually as follows:
  SAML011 Error when logging on for external ID "&1": &2
  Cause
  The error can be caused by several factors, including:
  
  Invalid External ID: The external ID provided does not match any user in the SAP system.
  Configuration Issues: There may be misconfigurations in the SAML settings, such as incorrect Identity Provider (IdP) or Service Provider (SP) configurations.
  Certificate Issues: 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.
  User Mapping Issues: The mapping between the external ID and the internal SAP user may not be correctly set up.
  
  Solution
  To resolve the SAML011 error, you can follow these steps:
  
  
  Verify External ID: Ensure that the external ID being used for login is correct and corresponds to a valid user in the SAP system.
  
  
  Check SAML Configuration:
  
  Review the SAML configuration in the SAP system, including the IdP and SP settings.
  Ensure that the SAML assertion is correctly configured and that the endpoints are reachable.
  
  
  
  Validate Certificates:
  
  Check the certificates used for SAML authentication. Ensure they are valid and not expired.
  If necessary, update the certificates in both the IdP and SAP system.
  
  
  
  Review User Mapping:
  
  Ensure that the mapping between the external ID and the internal SAP user is correctly configured.
  Check if the user exists in the SAP system and has the necessary authorizations.
  
  
  
  Check Network Connectivity: 
  
  Ensure that there are no network issues preventing communication between the SAP system and the IdP.
  
  
  
  Review Logs: 
  
  Check the SAP system logs and the IdP logs for more detailed error messages that can provide additional context for the issue.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or the specific IdP documentation for any additional configuration steps or troubleshooting tips.
  
  
  
  Related Information
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide patches related to SAML authentication.
  SAML Documentation: Review the SAML documentation provided by SAP for detailed configuration steps and best practices.
  Community Forums: Consider reaching out to SAP community forums or support for additional assistance if the issue persists.
  
  By following these steps, you should be able to identify and resolve the cause of the SAML011 error in your SAP environment.