How To Fix TN773 - The signature verification for &1 ended with errors: &2&3&4

SAP Error Message - Details

• Message type: E = Error

• Message class: TN - Support Package Manager (SPAM) Messages

• Message number: 773

• Message text: The signature verification for &1 ended with errors: &2&3&4

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 TN773 - The signature verification for &1 ended with errors: &2&3&4 ?

  The SAP error message TN773 indicates that there was an issue with the signature verification process for a document or message in the SAP system. This error typically occurs in the context of electronic data interchange (EDI) or when dealing with digitally signed documents.
  Cause:
  The error message TN773 can be caused by several factors, including:
  
  Invalid Signature: The digital signature of the document may be invalid or corrupted.
  Certificate Issues: The certificate used for signing may have expired, been revoked, or not be trusted by the system.
  Configuration Issues: There may be misconfigurations in the settings related to digital signatures or the trust relationship between systems.
  Data Integrity Issues: The data being verified may have been altered or tampered with after it was signed.
  Missing Public Key: The public key required to verify the signature may not be available in the system.
  
  Solution:
  To resolve the TN773 error, you can take the following steps:
  
  Check the Signature: Verify that the signature is valid and that the document has not been altered since it was signed.
  Review Certificates: Ensure that the signing certificate is valid, not expired, and trusted by the SAP system. You may need to import the public key into the system's trust store.
  Update Configuration: Review the configuration settings related to digital signatures in your SAP system. Ensure that all necessary parameters are correctly set.
  Check for Data Integrity: Ensure that the data being processed has not been modified after it was signed. If it has, you may need to obtain a new signed version of the document.
  Consult Logs: Check the application logs for more detailed error messages that can provide additional context about the failure.
  Contact Support: If the issue persists, consider reaching out to SAP support for further assistance, especially if it involves complex configurations or integrations.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to TN773 for any specific patches or updates that may address known issues.
  Documentation: Review SAP documentation on digital signatures and EDI processing for best practices and troubleshooting steps.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the TN773 error in your SAP system.