/SCWM/HU_WM128 - Collective HUs shall not be part of an HU-hierarchy.

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/HU_WM -

• Message number: 128

• Message text: Collective HUs shall not be part of an HU-hierarchy.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/HU_WM128 - Collective HUs shall not be part of an HU-hierarchy. ?

  The SAP error message /SCWM/HU_WM128 indicates that there is an issue with handling units (HUs) in the SAP Extended Warehouse Management (EWM) system. Specifically, this error occurs when you attempt to include collective handling units (HUs) as part of another handling unit hierarchy, which is not allowed in the system.
  Cause:
  The error is triggered when:
  
  You are trying to create a hierarchy where a collective handling unit is included as a child of another handling unit.
  Collective handling units are designed to group multiple individual handling units together, and they cannot be nested within another handling unit.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review the Handling Unit Structure: Check the structure of the handling units you are working with. Ensure that you are not trying to nest a collective handling unit within another handling unit.
  
  
  Use Individual Handling Units: If you need to create a hierarchy, consider using individual handling units instead of collective handling units. This will allow you to create the desired hierarchy without triggering the error.
  
  
  Adjust Your Process: If your business process requires the use of collective handling units, you may need to adjust how you are managing your handling units. Ensure that collective HUs are only used to group other HUs and not as part of a hierarchy.
  
  
  Consult Documentation: Refer to the SAP EWM documentation for more details on handling units and their hierarchy rules. This can provide additional insights into how to structure your handling units correctly.
  
  
  Check Customizations: If your system has custom developments or configurations, ensure that they are not interfering with the standard handling unit processing.
  
  
  Related Information:
  
  Handling Units in SAP EWM: Understanding the concept of handling units, including collective and individual HUs, is crucial for effective warehouse management.
  SAP Notes and Knowledge Base Articles: Check for any relevant SAP Notes or KBA that might address this specific error or provide additional context.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  By following these steps, you should be able to resolve the error and ensure that your handling unit management aligns with SAP EWM's requirements.