How To Fix TN789 - Verifying the digital signature of OCS package &1

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 789

• Message text: Verifying the digital signature of OCS package &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message TN789 - Verifying the digital signature of OCS package &1 ?

  The SAP error message TN789, which states "Verifying the digital signature of OCS package &1," typically occurs during the installation or update of an SAP component or package. This error indicates that there is an issue with the digital signature verification of the OCS (Online Correction Support) package.
  Causes:
  
  Corrupted Download: The OCS package may have been corrupted during the download process, leading to an invalid digital signature.
  Missing or Invalid Signature: The digital signature file associated with the package may be missing or invalid.
  Network Issues: Intermittent network issues during the download can lead to incomplete or corrupted files.
  Outdated SAP Kernel: An outdated SAP kernel may not support the latest digital signature verification methods.
  Incorrect System Time: If the system time is incorrect, it may affect the validation of the digital signature.
  
  Solutions:
  
  Re-download the Package: Try downloading the OCS package again from the SAP Service Marketplace to ensure that you have a complete and uncorrupted file.
  Check Digital Signature: Verify that the digital signature file is present and valid. You can check the integrity of the downloaded package using checksums if available.
  Update SAP Kernel: Ensure that your SAP kernel is up to date. You can download the latest kernel from the SAP Service Marketplace.
  Check System Time: Ensure that the system time and timezone settings are correct on your SAP server.
  Use SAP Notes: Check for any relevant SAP Notes that may address this specific error. SAP Notes often provide patches or workarounds for known issues.
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  Related Information:
  
  SAP Service Marketplace: This is the primary source for downloading OCS packages and other SAP software components.
  SAP Notes: Regularly check SAP Notes for updates or fixes related to OCS packages and digital signature verification.
  Documentation: Review the SAP documentation related to OCS and digital signatures for any specific requirements or troubleshooting steps.
  
  By following these steps, you should be able to resolve the TN789 error and successfully verify the digital signature of the OCS package.