How To Fix SAML2017 - There is no trust between entities &1 and &2 in client &3

SAP Error Message - Details

• Message type: E = Error

• Message class: SAML2 - SAML2 Nachrichten

• Message number: 017

• Message text: There is no trust between entities &1 and &2 in client &3

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 SAML2017 - There is no trust between entities &1 and &2 in client &3 ?

  The SAP error message SAML2017 indicates that there is no trust established between two entities in the context of SAML (Security Assertion Markup Language) authentication. This typically occurs when there is a misconfiguration in the trust relationship between the Identity Provider (IdP) and the Service Provider (SP) or between two different systems that are trying to communicate using SAML assertions.
  Cause
  The error can be caused by several factors, including:
  
  
  Missing or Incorrect Trust Configuration: The trust relationship between the IdP and SP is not properly configured. This could be due to missing certificates, incorrect URLs, or mismatched entity IDs.
  
  
  Certificate Issues: The certificates used for signing or encrypting SAML assertions may not be correctly installed or may have expired.
  
  
  Entity ID Mismatch: The entity IDs configured in the IdP and SP do not match, leading to a failure in establishing trust.
  
  
  Client Configuration Issues: The client (SAP system) may not be correctly configured to recognize the IdP or SP.
  
  
  Network Issues: There may be network connectivity issues preventing the systems from communicating.
  
  
  Solution
  To resolve the SAML2017 error, you can follow these steps:
  
  
  Verify Trust Configuration:
  
  Check the configuration of the IdP and SP to ensure that they are correctly set up to trust each other.
  Ensure that the entity IDs match on both sides.
  
  
  
  Check Certificates:
  
  Verify that the certificates used for SAML assertions are correctly installed and have not expired.
  If necessary, update the certificates in both the IdP and SP configurations.
  
  
  
  Review SAML Metadata:
  
  Ensure that the SAML metadata for both the IdP and SP is correctly configured and that the endpoints are reachable.
  
  
  
  Client Configuration:
  
  Check the client settings in the SAP system to ensure that it is configured to recognize the IdP or SP.
  Make sure that the correct client number is being used in the configuration.
  
  
  
  Test Connectivity:
  
  Ensure that there are no network issues preventing communication between the IdP and SP.
  Use tools like ping or traceroute to check connectivity.
  
  
  
  Logs and Traces:
  
  Check the logs in both the IdP and SP for any additional error messages that may provide more context on the issue.
  Enable SAML tracing in the SAP system to get more detailed information about the SAML requests and responses.
  
  
  
  Related Information
  
  SAML Documentation: Review the official SAML documentation for both the IdP and SP to understand the configuration requirements.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on configuring SAML.
  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 identify and resolve the cause of the SAML2017 error in your SAP environment.