How To Fix TRUST204 - Specify your own certificate first

SAP Error Message - Details

• Message type: E = Error

• Message class: TRUST - Certificate Management

• Message number: 204

• Message text: Specify your own certificate first

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 TRUST204 - Specify your own certificate first ?

  The SAP error message TRUST204: Specify your own certificate first typically occurs in the context of SAP systems when dealing with SSL (Secure Sockets Layer) or secure communication settings. This error indicates that the system is expecting a user-defined certificate to be specified before proceeding with certain operations, such as establishing secure connections or configuring trust relationships.
  Cause:
  
  Missing User Certificate: The error usually arises when the system is trying to establish a secure connection but does not have a user certificate defined in the SSL configuration.
  Incorrect Configuration: The SSL configuration may not be set up correctly, leading to the system not recognizing the user certificate.
  Trust Relationship Issues: The system may not have the necessary trust relationship established with the certificate authority (CA) or the server it is trying to connect to.
  
  Solution:
  To resolve the TRUST204 error, follow these steps:
  
  
  Check SSL Configuration:
  
  Go to transaction STRUST in the SAP GUI.
  In the SSL client (or server) SSL configuration, ensure that you have a valid user certificate defined.
  If not, you will need to create or import a user certificate.
  
  
  
  Import/Create User Certificate:
  
  If you need to create a new certificate, you can do so by selecting the appropriate option in the STRUST transaction.
  If you have an existing certificate, you can import it into the system using the import functionality in STRUST.
  
  
  
  Set Up Trust Relationships:
  
  Ensure that the necessary trust relationships are established. This may involve importing the CA certificate into the system's trust store.
  Verify that the server's certificate is trusted by the client and vice versa.
  
  
  
  Test the Configuration:
  
  After making the necessary changes, test the SSL connection to ensure that the error is resolved.
  You can use tools like SSL Test or similar to verify the SSL handshake.
  
  
  
  Check Logs:
  
  If the issue persists, check the system logs (transaction SM21) for any additional error messages that might provide more context on the problem.
  
  
  
  Related Information:
  
  Documentation: Refer to SAP's official documentation on SSL configuration and trust management for detailed steps and best practices.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to SSL and certificates.
  Security Best Practices: Ensure that you follow security best practices when managing certificates, including regular updates and audits of your SSL configurations.
  
  By following these steps, you should be able to resolve the TRUST204 error and establish secure communication in your SAP environment.