How To Fix WY061 - Plant & is already being processed; plant assignment cannot be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: WY - Supplier Master

• Message number: 061

• Message text: Plant & is already being processed; plant assignment cannot be changed

What causes this issue?

You have attempted to block a plant that is already being used by
another user. The block cannot be set and you cannot make the
required assignment.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Please make the required plant assignment at a later date.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WY061 - Plant & is already being processed; plant assignment cannot be changed ?

  Certainly! Here's a detailed explanation for the SAP error message WY061: "Plant & is already being processed; plant assignment cannot be changed":
  
  Error Message
  WY061: Plant & is already being processed; plant assignment cannot be changed
  
  Cause
  This error occurs when you attempt to change the plant assignment of a material or an object that is currently being processed or locked in the system. The system prevents changes to the plant assignment because the plant is involved in an ongoing transaction or process, such as:
  
  A material master record is being edited or updated in another session.
  A background job or batch process is currently running that involves the plant.
  The plant is locked due to a transaction in progress (e.g., goods movement, production order processing, or inventory management).
  The system is preventing inconsistent data by disallowing changes while the plant is "in use" or "locked."
  
  
  Solution
  To resolve this error, you can try the following steps:
  
  
  Check for Locks:
  
  Use transaction SM12 to check for lock entries related to the plant or material.
  Identify if any user or process is holding a lock on the plant or related master data.
  If appropriate, release the lock after confirming no critical process is running.
  
  
  
  Wait for Background Jobs to Complete:
  
  If a background job or batch process is running, wait for it to finish before attempting the change again.
  
  
  
  Check for Open Transactions:
  
  Verify if there are any open transactions involving the plant (e.g., production orders, purchase orders, goods movements).
  Complete or close these transactions if possible.
  
  
  
  Avoid Concurrent Edits:
  
  Ensure that no other user is editing the same material master or plant assignment simultaneously.
  
  
  
  System Restart (if applicable):
  
  In rare cases, if locks are not released due to system issues, a system restart or contacting BASIS team might be necessary.
  
  
  
  
  Related Information
  
  Transaction SM12: To monitor and manage lock entries.
  Material Master Maintenance (MM01/MM02): Plant assignment changes are typically done here.
  Background Jobs (SM37): To check running jobs that might be locking the plant.
  Lock Mechanism in SAP: SAP uses enqueue locks to prevent data inconsistencies during concurrent access.
  
  
  Summary
  The error WY061 indicates that the plant you are trying to assign or change is currently locked or being processed. You need to identify and clear the lock or wait for the ongoing process to complete before making changes.
  
  If you need help with specific steps or further troubleshooting, feel free to ask!