How To Fix VLA023 - Error during lock of selected deliveries

SAP Error Message - Details

• Message type: E = Error

• Message class: VLA - General Output Class for Delivery

• Message number: 023

• Message text: Error during lock of selected deliveries

What causes this issue?

An error occurred as the selected deliveries were being locked. Either
one of the deliveries involved is being processed or there is an error
in lock management.

System Response

If group output processing is defined for the group type, the system
locks the deliveries that are to be put together in that group to make
sure that the deliveries involved are not currently being processed. In
this case, the deliveries cannot be refreshed (during dispatch of
picking output, for example). The multiple block is lifted before the
outputs are updated.

How to fix this error?

Make sure that none of the selected deliveries are currently being
processed and then attempt the action again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VLA023 - Error during lock of selected deliveries ?

  The SAP error message VLA023, which states "Error during lock of selected deliveries," typically occurs in the context of processing deliveries in the SAP system. This error can arise due to various reasons, and understanding the cause is essential for finding an appropriate solution.
  Causes of VLA023 Error
  
  
  Lock Conflicts: The most common cause of this error is a lock conflict. This happens when multiple users or processes are trying to access or modify the same delivery document simultaneously. SAP uses locks to ensure data integrity, and if one process holds a lock on a delivery, another process trying to access it will encounter this error.
  
  
  Database Issues: Sometimes, underlying database issues can lead to locking problems. This could be due to database performance issues or deadlocks.
  
  
  Long-running Transactions: If a transaction takes too long to complete, it may hold locks longer than expected, causing other transactions to fail with this error.
  
  
  Custom Code or Enhancements: If there are custom developments or enhancements in the delivery processing logic, they might inadvertently cause locking issues.
  
  
  Solutions to VLA023 Error
  
  
  Check for Lock Entries: Use transaction code SM12 to check for lock entries related to the delivery. You can identify which user or process is holding the lock and take appropriate action, such as waiting for the lock to be released or contacting the user.
  
  
  Retry the Operation: If the error is due to a temporary lock conflict, simply retrying the operation after a short wait may resolve the issue.
  
  
  Optimize Long-running Transactions: Review and optimize any long-running transactions that may be holding locks for extended periods. This may involve analyzing the code or processes involved.
  
  
  Database Performance: Check the performance of the database. If there are issues, work with your database administrator to resolve them.
  
  
  Review Custom Code: If there are custom developments, review the code for any locking mechanisms that may be causing conflicts. Ensure that locks are being released appropriately.
  
  
  System Monitoring: Implement monitoring for lock situations in your SAP system to proactively identify and resolve locking issues before they lead to errors.
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to view lock entries), SM21 (to check system logs), and ST22 (to check for dumps) for troubleshooting.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address specific issues related to the VLA023 error.
  User Training: Ensure that users are trained on best practices for processing deliveries to minimize lock conflicts.
  
  By understanding the causes and applying the appropriate solutions, you can effectively address the VLA023 error in your SAP environment.