How To Fix WM123 - Module & is locked for the exclusive use of user &

WM123 - Overview

• Message type: E = Error

• Message class: WM - IS-R Assortments

• Message number: 123

• Message text: Module & is locked for the exclusive use of user &

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WM123 - Module & is locked for the exclusive use of user & ?

  The SAP error message WM123 indicates that a specific module in the Warehouse Management (WM) system is locked for exclusive use by a particular user. This typically occurs when a user is performing a transaction that requires exclusive access to a module, and another user is trying to access the same module simultaneously.
  
  Cause:
  
  Exclusive Locking: The module is locked because a user is currently processing a transaction that requires exclusive access. This can happen during activities like inventory management, stock transfers, or other warehouse operations.
  Long-running Transactions: If a transaction takes too long to complete, it can hold the lock longer than expected, preventing other users from accessing the module.
  Session Issues: Sometimes, a user may have an open session that is not properly closed, leading to a lock on the module.
  System Errors: Occasionally, system errors or crashes can leave a module in a locked state.
  
  
  Solution:
  
  Wait and Retry: If the lock is due