How To Fix VO024 - One of the deliveries for forming the wave is locked by user &

SAP Error Message - Details

• Message type: E = Error

• Message class: VO - W&S: Rough workload forecast + picking wave

• Message number: 024

• Message text: One of the deliveries for forming the wave is locked by user &

System Response

It is not possible to create picking waves.

How to fix this error?

You have three options:
Wait for a while, and then try again to create picking waves.
Ask the user to release the delivery.
Inform your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VO024 - One of the deliveries for forming the wave is locked by user & ?

  Certainly! Here's a detailed explanation for the SAP error message VO024 - "One of the deliveries for forming the wave is locked by user &":
  
  Error Message: VO024
  Text: One of the deliveries for forming the wave is locked by user &
  
  Cause:
  
  This error occurs during the wave formation process in SAP Warehouse Management (WM) or Extended Warehouse Management (EWM).
  The system tries to include deliveries into a wave, but one or more of these deliveries are currently locked by another user or process.
  Locking happens because the delivery is being processed or updated by another transaction or user, preventing simultaneous changes to ensure data consistency.
  Typical scenarios:
  
  Another user is editing or processing the delivery.
  A background job or process is currently working on the delivery.
  A previous process did not release the lock properly due to an error or system crash.
  
  
  
  
  Solution:
  
  
  Identify the User Holding the Lock:
  
  The error message shows the user ID (&) who holds the lock.
  Contact that user to check if they are still working on the delivery.
  If the user is not actively working, they might have left the session open or the lock was not released properly.
  
  
  
  Release the Lock:
  
  If the user is not available or the lock is stale, an administrator can release the lock.
  Use transaction SM12 (Lock Entries) to find and delete the lock entries related to the delivery number.
  
  Enter the delivery number or relevant object in SM12.
  Identify the lock entry.
  Delete the lock entry carefully (only if you are sure it is safe to do so).
  
  
  
  
  
  Check for Background Jobs or Processes:
  
  Verify if any background jobs are processing the delivery.
  Wait for the job to complete or cancel it if necessary.
  
  
  
  Retry Wave Formation:
  
  After the lock is released, retry the wave formation process.
  
  
  
  Preventive Measures:
  
  Ensure users properly complete or exit transactions to release locks.
  Monitor long-running jobs or processes that might lock deliveries.
  Implement user training or system monitoring to avoid frequent locking conflicts.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12 – Display and delete lock entries.
  VL06O – Outbound Delivery Monitor (to check delivery status).
  /SCWM/WAVE – Wave management in EWM.
  
  
  
  SAP Notes:
  
  Check SAP Notes related to delivery locks and wave formation for your SAP version.
  
  
  
  Lock Objects:
  
  Delivery locks are usually related to lock objects like L_VBELN (for delivery document number).
  
  
  
  Wave Formation:
  
  Wave formation groups deliveries for picking and shipping.
  Locking ensures data integrity during this grouping.
  
  
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Delivery is locked by another user/process during wave formation.
  
  
  Effect
  Wave formation cannot proceed until the lock is released.
  
  
  Solution
  Identify and release the lock via SM12, coordinate with the locking user, then retry.
  
  
  Prevention
  Proper session management, monitoring, and user training to avoid stale locks.
  
  
  
  
  If you need help with specific steps or have additional context (e.g., SAP version, WM or EWM), feel free to ask!