How To Fix TRUST109 - SSL System Client &1

SAP Error Message - Details

• Message type: E = Error

• Message class: TRUST - Certificate Management

• Message number: 109

• Message text: SSL System Client &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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message TRUST109 - SSL System Client &1 ?

  The SAP error message TRUST109 typically indicates an issue with the SSL (Secure Sockets Layer) configuration in the SAP system, specifically related to the SSL system client. This error can occur when the SSL client is not properly configured or when there are issues with the SSL certificates.
  Cause:
  
  Missing or Invalid SSL Certificates: The SSL client may not have the required certificates installed, or the certificates may be expired or invalid.
  Incorrect SSL Configuration: The SSL configuration settings in the SAP system may not be set up correctly.
  Trust Relationship Issues: The system may not trust the certificate authority (CA) that issued the SSL certificate.
  Network Issues: There may be network-related issues preventing the SSL handshake from completing successfully.
  
  Solution:
  
  
  Check SSL Certificates:
  
  Ensure that the required SSL certificates are installed in the SAP system.
  Verify that the certificates are valid and not expired.
  If necessary, import the correct certificates into the SAP system's SSL PSE (Personal Security Environment).
  
  
  
  Review SSL Configuration:
  
  Go to transaction STRUST in the SAP GUI to check the SSL configuration.
  Ensure that the SSL client is correctly configured and that the necessary certificates are assigned to the SSL client.
  
  
  
  Update Trust Relationships:
  
  If the SSL certificate is issued by a CA, ensure that the CA's root certificate is imported into the SAP system's trust store.
  You can do this in transaction STRUST by importing the CA certificate into the "SSL Client (Anonymous)" or "SSL Client (Server)" PSE.
  
  
  
  Test SSL Connection:
  
  Use transaction SM59 to test the RFC connection that uses SSL. This can help identify if the issue is with the connection itself.
  Check the connection settings and ensure that the SSL settings are correctly configured.
  
  
  
  Check Network Configuration:
  
  Ensure that there are no firewall or network issues that could be blocking the SSL connection.
  Verify that the server is reachable and that the correct ports are open.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  STRUST: Manage SSL certificates and PSEs.
  SM59: Manage RFC connections.
  SICF: Check and configure HTTP services.
  
  
  
  Documentation: Refer to SAP's official documentation on SSL configuration and troubleshooting for more detailed steps and best practices.
  
  
  SAP Notes: Check for relevant SAP Notes that may address specific issues related to SSL configuration and the TRUST109 error.
  
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.