How To Fix HTTP_CSP_UI_MSG026 - Enqueue for HTTP Whitelist locked.

SAP Error Message - Details

• Message type: E = Error

• Message class: HTTP_CSP_UI_MSG - strings for output in http alv

• Message number: 026

• Message text: Enqueue for HTTP Whitelist locked.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message HTTP_CSP_UI_MSG026 - Enqueue for HTTP Whitelist locked. ?

  The SAP error message HTTP_CSP_UI_MSG026: Enqueue for HTTP Whitelist locked typically occurs when there is an issue with the HTTP whitelist configuration in the SAP system. This error indicates that the system is unable to modify the HTTP whitelist because it is currently locked by another process or user.
  Cause:
  
  Concurrent Access: The HTTP whitelist is being accessed or modified by another user or process, leading to a lock.
  Long-Running Transactions: A transaction that modifies the HTTP whitelist may be taking too long, causing other requests to wait for the lock to be released.
  System Configuration Issues: There may be underlying configuration issues or bugs in the SAP system that are causing the lock to persist.
  
  Solution:
  
  Wait and Retry: If the lock is temporary, waiting for a few moments and then retrying the operation may resolve the issue.
  Check Active Sessions: Use transaction codes like SM12 to check for active locks in the system. Look for entries related to the HTTP whitelist and see if you can identify the session that is holding the lock.
  Release Locks: If you find a session that is holding the lock and it is safe to do so, you can manually delete the lock entry using transaction SM12. Be cautious with this approach, as it may disrupt the session that is currently using the lock.
  System Restart: In some cases, a system restart may be necessary to clear persistent locks, but this should be done with caution and typically as a last resort.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as there may be fixes for known issues related to the HTTP whitelist.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (to view and manage locks), SM21 (to check system logs), and ST22 (to check for dumps) for further investigation.
  SAP Documentation: Review the official SAP documentation for HTTP whitelist configuration and management to ensure that your settings are correct.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or contact SAP support for further assistance.