How To Fix /UI2/INTEROP026 - Failed to encrypt timestamp

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/INTEROP -

• Message number: 026

• Message text: Failed to encrypt timestamp

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 /UI2/INTEROP026 - Failed to encrypt timestamp ?

  The SAP error message /UI2/INTEROP026 Failed to encrypt timestamp typically occurs in the context of SAP Fiori applications or when using the SAP Gateway. This error is related to issues with the encryption of timestamps, which are often used for security purposes in communication between the client and server.
  Causes:
  
  
  Missing or Incorrect Cryptographic Configuration: The system may not have the necessary cryptographic settings configured correctly. This can include missing keys or incorrect settings in the Secure Network Communications (SNC) configuration.
  
  
  Expired or Invalid Certificates: If the system relies on SSL/TLS for secure communication, expired or invalid certificates can lead to encryption failures.
  
  
  Incompatible Cryptographic Libraries: The libraries used for encryption may not be compatible with the version of SAP you are using.
  
  
  System Time Issues: If the system time is not synchronized correctly, it can lead to issues with timestamp validation and encryption.
  
  
  Authorization Issues: The user or service account may not have the necessary permissions to perform encryption operations.
  
  
  Solutions:
  
  
  Check Cryptographic Configuration:
  
  Ensure that the cryptographic settings in the SAP system are correctly configured. This includes checking the SNC settings and ensuring that the necessary keys are available.
  
  
  
  Update Certificates:
  
  Verify that all SSL/TLS certificates are valid and not expired. If they are expired, renew them and update the configuration accordingly.
  
  
  
  Verify Cryptographic Libraries:
  
  Ensure that the cryptographic libraries used by your SAP system are up to date and compatible with your version of SAP.
  
  
  
  Synchronize System Time:
  
  Check the system time on both the client and server. Ensure that they are synchronized, ideally using a Network Time Protocol (NTP) server.
  
  
  
  Check User Authorizations:
  
  Review the authorizations for the user or service account that is encountering the error. Ensure that it has the necessary permissions to perform encryption.
  
  
  
  Review SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve the issue.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for guidance on configuring SNC and cryptographic settings.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  System Logs: Check the system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP Support for further assistance.