How To Fix SAML899 - Internal error: &1 &2 &3 &4 (see long text)

SAP Error Message - Details

• Message type: E = Error

• Message class: SAML - Messages for SAML

• Message number: 899

• Message text: Internal error: &1 &2 &3 &4 (see long text)

What causes this issue?

A program error occurred.

System Response

The current status of the program was not intended and therefore leads
to an error message.

How to fix this error?

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

Procedure for System Administrators

Check if there is already a solution for this error in a SAP Note. Use
the search terms <(><<)>ZH>SAML899 <(>&<)>V1& <(>&<)>V2& <(>&<)>V3&
<(>&<)>V4<(>&<)><(><<)>/> to do this.
If the search does not produce any results, create a customer message,
specifying the error number <(><<)>ZH>SAML899<(><<)>/>.
Describe the circumstances that lead to this error as precisely as
possible.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SAML899 - Internal error: &1 &2 &3 &4 (see long text) ?

  The SAP error message SAML899 indicates an internal error related to the Security Assertion Markup Language (SAML) framework used for Single Sign-On (SSO) in SAP systems. This error typically arises during the authentication process when there is a problem with the SAML configuration or the communication between the Identity Provider (IdP) and the Service Provider (SP).
  Possible Causes:
  
  Configuration Issues: Incorrect settings in the SAML configuration, such as mismatched entity IDs, certificates, or endpoints.
  Network Issues: Problems with network connectivity between the SAP system and the IdP.
  Certificate Problems: Expired or invalid certificates used for signing or encrypting SAML assertions.
  Version Mismatch: Incompatibility between the SAML versions used by the IdP and the SP.
  Session Issues: Problems with session management or session timeouts.
  Internal Bugs: Potential bugs in the SAP system or the SAML implementation.
  
  Solutions:
  
  Check Configuration: Review the SAML configuration settings in the SAP system and ensure they match the IdP settings. Pay attention to entity IDs, assertion consumer service URLs, and certificate details.
  Validate Certificates: Ensure that the certificates used for SAML assertions are valid, not expired, and correctly configured in both the IdP and SP.
  Network Connectivity: Verify that there are no network issues preventing communication between the SAP system and the IdP.
  Review Logs: Check the SAP system logs (transaction codes like SLG1) for more detailed error messages that can provide insights into the issue.
  Update SAP System: If the error is due to a known bug, consider applying the latest support packages or patches from SAP.
  Test with Different IdP: If possible, test the SAML configuration with a different IdP to isolate the issue.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to SAML and the error message SAML899.
  Documentation: Review the official SAP documentation on SAML configuration and troubleshooting for detailed guidance.
  Community Forums: Engage with the SAP Community or other forums where similar issues may have been discussed.
  
  If the issue persists after trying the above solutions, it may be necessary to contact SAP support for further assistance.