How To Fix /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

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

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