How To Fix TRUST006 - No certificate selected

SAP Error Message - Details

• Message type: E = Error

• Message class: TRUST - Certificate Management

• Message number: 006

• Message text: No certificate selected

What causes this issue?

The "Certificate" group box is empty.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Choose the "Import Certificate" function.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TRUST006 - No certificate selected ?

  The SAP error message TRUST006: No certificate selected typically occurs when there is an issue with the digital certificates used for secure communication in SAP systems, particularly in scenarios involving Secure Network Communications (SNC) or when using SSL (Secure Sockets Layer).
  Cause:
  
  Missing Certificates: The system may not have the required digital certificates installed or configured properly.
  Incorrect Configuration: The configuration settings for the trust relationship between systems may be incorrect, leading to the inability to select a valid certificate.
  Expired Certificates: The certificates in use may have expired, making them invalid for secure communication.
  Certificate Store Issues: The certificate store may not be properly populated or accessible, leading to the inability to select a certificate.
  User Authorization: The user may not have the necessary authorizations to access the certificates.
  
  Solution:
  
  
  Check Certificate Installation:
  
  Ensure that the required certificates are installed in the SAP system. You can check this in transaction STRUST (Trust Manager).
  Verify that the correct certificate is available in the appropriate certificate store (e.g., PSE - Personal Security Environment).
  
  
  
  Configure Trust Relationships:
  
  If you are setting up a trust relationship between two systems, ensure that both systems have the necessary certificates and that they are correctly configured.
  Use transaction STRUST to import and manage certificates.
  
  
  
  Renew or Replace Expired Certificates:
  
  If any certificates are expired, renew them or replace them with valid certificates.
  
  
  
  Check User Authorizations:
  
  Ensure that the user has the necessary authorizations to access the certificate store and perform operations related to certificates.
  
  
  
  Review SSL Configuration:
  
  If using SSL, ensure that the SSL configuration is correct. This includes checking the SSL parameters in the instance profile and ensuring that the SSL port is correctly configured.
  
  
  
  Restart the System:
  
  After making changes to certificates or configurations, it may be necessary to restart the SAP system or the relevant services to apply the changes.
  
  
  
  Related Information:
  
  Transaction STRUST: This transaction is used to manage and maintain the trust relationships and certificates in SAP systems.
  SAP Notes: Check for relevant SAP Notes that may provide additional guidance or solutions for specific scenarios related to the TRUST006 error.
  Documentation: Refer to SAP documentation on SNC and SSL for detailed configuration steps and best practices.
  
  If the issue 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.