How To Fix SAML2158 - Problem with endpoint URL '&1' evaluation with regular expression

SAML2158 - Overview

• Message type: E = Error

• Message class: SAML2 - SAML2 Nachrichten

• Message number: 158

• Message text: Problem with endpoint URL '&1' evaluation with regular expression

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 SAML2158 - Problem with endpoint URL '&1' evaluation with regular expression ?

  The SAP error message SAML2158 indicates that there is a problem with the evaluation of an endpoint URL against a regular expression. This error typically occurs in the context of Single Sign-On (SSO) configurations using SAML (Security Assertion Markup Language).
  
  Cause:
  The error is usually caused by one of the following issues:
  
  Invalid URL Format: The endpoint URL specified in the SAML configuration does not conform to the expected format or contains invalid characters.
  Regular Expression Mismatch: The regular expression used to validate the endpoint URL is not correctly defined, leading to a mismatch.
  Configuration Errors: There may be misconfigurations in the SAML settings, such as incorrect entity IDs or endpoint URLs.
  Whitespace or Special Characters: The URL may contain leading or trailing whitespace or special characters that are not handled correctly by the regular expression.
  
  
  Solution:
  To resolve the SAML2158 error, you can take the following steps:
  
  
  Check the Endpoint URL:
  
  Verify that the endpoint URL is correctly formatted