How To Fix OT766 - OCS Package &1: EPS file of ACP &2 is not signed

SAP Error Message - Details

• Message type: E = Error

• Message class: OT - SAP Online Correction Support (SOCS)

• Message number: 766

• Message text: OCS Package &1: EPS file of ACP &2 is not signed

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message OT766 - OCS Package &1: EPS file of ACP &2 is not signed ?

  The SAP error message OT766 indicates that there is an issue with the OCS (Online Change System) package, specifically that the EPS (Extended Package Structure) file of the ACP (Add-On Component) is not signed. This can occur during the installation or update of an SAP add-on or component.
  Cause:
  
  Missing Signature: The EPS file is expected to be signed for security and integrity purposes. If the file is not signed, it raises a security concern, and the system will not allow the installation or update to proceed.
  Corrupted File: The EPS file may be corrupted or improperly downloaded, leading to the absence of a valid signature.
  Incorrect Package: The package being used may not be the correct version or may not be intended for the current system configuration.
  
  Solution:
  
  Check the Package: Ensure that you are using the correct version of the OCS package that is compatible with your SAP system. Verify that the package is intended for your specific SAP version and configuration.
  Download Again: If the EPS file is corrupted, re-download the package from the SAP Service Marketplace or the appropriate source to ensure you have a complete and valid file.
  Verify Signature: If you have access to the signing keys, verify that the EPS file is signed correctly. If not, you may need to contact SAP support for assistance in obtaining a properly signed version of the package.
  SAP Support: If the issue persists, consider reaching out to SAP support for further assistance. They can provide guidance on how to resolve the issue and may have additional tools or patches available.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the installation documentation for the specific add-on or component you are trying to install, as it may contain important information regarding prerequisites and installation steps.
  System Logs: Check the system logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to identify and resolve the issue related to the OT766 error message in SAP.