How To Fix SR154 - Cannot check settings for SSL client certificate

SAP Error Message - Details

• Message type: E = Error

• Message class: SR - RFC utilities

• Message number: 154

• Message text: Cannot check settings for SSL client certificate

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 SR154 - Cannot check settings for SSL client certificate ?

  The SAP error message SR154, which states "Cannot check settings for SSL client certificate," typically indicates an issue with the SSL configuration in the SAP system, particularly related to the client certificate used for secure communication. Here are some potential causes, solutions, and related information for this error:
  Causes:
  
  Missing or Incorrect SSL Client Certificate: The client certificate required for SSL communication may be missing or incorrectly configured.
  Certificate Expiration: The SSL client certificate may have expired, making it invalid for use.
  Trust Store Issues: The trust store may not contain the necessary root or intermediate certificates required to validate the SSL client certificate.
  Configuration Errors: There may be misconfigurations in the SSL settings within the SAP system or the underlying web server.
  Network Issues: Network problems could prevent the SAP system from accessing the certificate or the certificate authority (CA) for validation.
  
  Solutions:
  
  
  Check SSL Client Certificate:
  
  Ensure that the SSL client certificate is correctly installed and configured in the SAP system.
  Verify that the certificate is valid and has not expired.
  
  
  
  Update Trust Store:
  
  Make sure that the trust store contains the necessary root and intermediate certificates. You may need to import the CA certificates into the trust store used by the SAP system.
  
  
  
  Review SSL Configuration:
  
  Check the SSL configuration settings in the SAP system (e.g., transaction STRUST) to ensure they are correctly set up.
  Ensure that the SSL protocol versions and cipher suites are compatible with the server you are trying to connect to.
  
  
  
  Test Connectivity:
  
  Use tools like OpenSSL to test the SSL connection and verify that the client certificate is being sent correctly.
  Check for any network issues that may be affecting the connection.
  
  
  
  Consult Logs:
  
  Review the SAP system logs (e.g., dev_ssl) for more detailed error messages that can provide additional context about the issue.
  
  
  
  Update SAP Kernel:
  
  Ensure that you are using a supported version of the SAP kernel that is compatible with the SSL/TLS protocols you are using.
  
  
  
  Related Information:
  
  Transaction STRUST: This transaction is used to manage SSL certificates in SAP. You can view and maintain the SSL client and server certificates here.
  SAP Notes: Check for relevant SAP Notes that may address specific issues related to SSL configuration and client certificates.
  Documentation: Refer to the official SAP documentation for SSL configuration and troubleshooting for detailed steps and best practices.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.