How To Fix SAML2182 - No SAP Global User ID found for User '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: SAML2 - SAML2 Nachrichten

• Message number: 182

• Message text: No SAP Global User ID found for User '&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 SAML2182 - No SAP Global User ID found for User '&1' ?

  The SAP error message SAML2182 indicates that the system could not find a corresponding SAP Global User ID for the specified user. This error typically occurs in the context of Single Sign-On (SSO) configurations, particularly when using SAML (Security Assertion Markup Language) for authentication.
  Cause:
  
  Missing Global User ID: The user attempting to log in does not have a Global User ID assigned in the SAP system.
  Incorrect User Mapping: The mapping between the identity provider (IdP) and the SAP system may not be correctly configured, leading to the system not recognizing the user.
  User Not Created: The user may not exist in the SAP system or may not have been properly provisioned.
  Configuration Issues: There may be issues with the SAML configuration, such as incorrect settings in the SAML assertion or the service provider (SP) configuration.
  
  Solution:
  
  Check User Existence: Verify that the user exists in the SAP system. You can do this by checking the user master records in transaction SU01.
  Assign Global User ID: If the user exists but does not have a Global User ID, you need to assign one. This can typically be done in the user profile settings.
  Review SAML Configuration:
  
  Ensure that the SAML configuration on both the IdP and SP sides is correct.
  Check the attribute mappings to ensure that the user ID from the IdP is correctly mapped to the SAP Global User ID.
  
  
  Check User Mapping: Ensure that the user mapping between the IdP and SAP is correctly set up. This may involve checking the SAML assertion to ensure it contains the correct attributes.
  Consult Logs: Review the SAML logs for any additional error messages or warnings that could provide more context on the issue.
  Test with Different Users: If possible, test the SSO functionality with different users to determine if the issue is isolated to a specific user or if it is a broader configuration issue.
  
  Related Information:
  
  SAML Assertions: Understand how SAML assertions work and what attributes are being sent from the IdP to the SAP system.
  SAP Documentation: Refer to SAP's official documentation on SSO and SAML configurations for detailed guidance on setting up and troubleshooting SSO.
  User Management: Familiarize yourself with user management transactions in SAP, such as SU01 for user maintenance and SU10 for mass user changes.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional troubleshooting steps related to SAML and user authentication.
  
  By following these steps, you should be able to identify and resolve the issue causing the SAML2182 error message.