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

TN789 - Overview

• 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

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 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  Outdated SAP Kernel: An outdated SAP kernel may not support the latest digital signature verification methods.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