Message type: E = Error
Message class: /SCWM/WAVE -
Message number: 030
Message text: Locking error; wave being updated asynchronously via queue &1
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/SCWM/WAVE030
- Locking error; wave being updated asynchronously via queue &1 ?The SAP error message /SCWM/WAVE030 indicates a locking issue in the SAP Extended Warehouse Management (EWM) system. This error typically occurs when a wave is being updated asynchronously via a queue, and another process is trying to access or modify the same wave at the same time. Here’s a breakdown of the cause, potential solutions, and related information:
Cause: Concurrent Access: The error arises when multiple processes attempt to access or modify the same wave simultaneously. This can happen if: A wave is being processed in the background (e.g., through a background job or a queue). Another user or process is trying to update the same wave. Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. When a wave is being processed, it is locked, and any other attempts to modify it will result in a locking error.
Solution: Wait and Retry: If the error is due to a temporary lock, waiting for a few
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