How To Fix /SCWM/TO_WHR018 - Warehouse request &1, item &2, already assigned to a wave

/SCWM/TO_WHR018 - Overview

• Message type: E = Error

• Message class: /SCWM/TO_WHR -

• Message number: 018

• Message text: Warehouse request &1, item &2, already assigned to a wave

Self-Explanatory Message

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/SCWM/TO_WHR018 - Details

• The SAP error message /SCWM/TO_WHR018 indicates that a warehouse request (TO - Transfer Order) is already assigned to a wave in the Extended Warehouse Management (EWM) module. This typically occurs when you attempt to assign a warehouse request or item that is already linked to an existing wave, which can lead to conflicts in processing.
  
  Cause:
  
  Duplicate Assignment: The warehouse request or item is already part of a wave, and the system does not allow reassigning it to another wave.
  Wave Management Settings: The configuration settings in the EWM system may restrict the reassignment of items that are already included in a wave.
  Process Flow Issues: There may be issues in the process flow where the same warehouse request is being processed multiple times.
  
  
  Solution:
  
  Check Wave Assignment: Verify if the warehouse request and item are indeed assigned to a wave. You can do this by checking the wave management screen in EWM.
  Release the Wave: If