How To Fix FDT_BRS033 - Signature not valid

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_BRS - BRFplus Business Rule Services

• Message number: 033

• Message text: Signature not valid

What causes this issue?

The signature of your DSM system is not valid.
It seems that the DSM system setup is not complete. A signature is used
to sign the generated coding. This is to prevent any unauthorized or
malicious misusage of the DSM service deployment mechanism.

System Response

The service deployment ends with a syntax error and the service cannot
be used in the managed system.

How to fix this error?

To verify the signature, the public key of the DSM system has to be
imported into your managed systems. To accomplish this, proceed as
follows:
Log on to the DSM system.
Start Transaction STRUST.
Export the system certificate (System PSE).
Log on to the managed system.
Start Transaction STRUST.
Import the previously exported certificate.
Repeat the last three steps for all managed systemsin your system
landscape.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_BRS033 - Signature not valid ?

  The SAP error message FDT_BRS033: Signature not valid typically occurs in the context of electronic document processing, particularly when dealing with digital signatures in SAP applications. This error indicates that the digital signature associated with a document is either invalid or cannot be verified.
  Causes:
  
  Expired Certificate: The digital certificate used to create the signature may have expired.
  Certificate Revocation: The certificate may have been revoked by the issuing authority.
  Mismatched Keys: The public key used to verify the signature does not match the private key that was used to create the signature.
  Corrupted Document: The document may have been altered after it was signed, which would invalidate the signature.
  Configuration Issues: There may be issues with the configuration of the digital signature settings in SAP.
  Missing Trust Chain: The root or intermediate certificates required to validate the signature may not be installed or trusted in the system.
  
  Solutions:
  
  Check Certificate Validity: Verify that the digital certificate used for signing is still valid and has not expired.
  Verify Signature: Ensure that the document has not been altered after signing. If it has, you may need to re-sign the document.
  Update Certificates: If the certificate has been revoked or expired, obtain a new valid certificate from the certificate authority.
  Check Configuration: Review the configuration settings for digital signatures in SAP to ensure they are set up correctly.
  Install Missing Certificates: Ensure that all necessary root and intermediate certificates are installed in the SAP trust store.
  Consult Logs: Check the SAP application logs for more detailed error messages that can provide additional context for the issue.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to digital signatures and the specific error message for any patches or updates that may address the issue.
  Documentation: Review SAP documentation on electronic signatures and digital document processing for best practices and troubleshooting steps.
  Support: If the issue persists, consider reaching out to SAP support for assistance, providing them with detailed information about the error and the context in which it occurs.
  
  By following these steps, you should be able to identify the cause of the FDT_BRS033 error and implement a suitable solution.