How To Fix KZ171 - Material &1/plant &2 is being processed by user &3

KZ171 - Overview

• Message type: E = Error

• Message class: KZ - Cost Object Repetitive Mfg / Process Mfg

• Message number: 171

• Message text: Material &1/plant &2 is being processed by user &3

What causes this issue?

You are attempting to assign material &v1&/plant &v2& to a
<DS:GLOS.cost_object_node>cost object node</>. However, this material
is currently locked by user &v3&.

System Response

The assignment is not possible at this time.

How to fix this error?

Enter a different object, or wait until user &v3& has finished
processing material &v1&/plant &v2&.

Error message extract from SAP system. Copyright SAP SE.

KZ171 - Details

• The SAP error message KZ171 indicates that a specific material in a particular plant is currently being processed by another user. This typically occurs in scenarios where multiple users are trying to access or modify the same material master data or related transactions simultaneously.
  
  Cause:
  
  Concurrent Access: Another user is currently editing or processing the material in the specified plant.
  Lock Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. When a user accesses a material, it gets locked for editing by others until the first user completes their transaction.
  Long-running Transactions: If a user has a long-running transaction, it may hold the lock for an extended period, causing other users to encounter this error.
  
  
  Solution:
  
  Wait and Retry: The simplest solution is to wait for the other user to finish their transaction. You can try again after a few minutes.
  Identify the User: If you have the necessary permissions, you can check which user is