How To Fix W0006 - The MG hierarchy level field cannot be maintained

W0006 - Overview

• Message type: E = Error

• Message class: W0 - Customizing - ISR

• Message number: 006

• Message text: The MG hierarchy level field cannot be maintained

What causes this issue?

You did not select the indicators for
"Assign MG to value-only material" and "MG stock to value-only
material".
You therefore are not allowed to maintain the MG hierarchy level field.

How to fix this error?

Set the flags as required or delete the MG hierarchy level.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message W0006 - The MG hierarchy level field cannot be maintained ?

  Certainly! Here's detailed information about the SAP error message:
  
  SAP Error Message:
  W0006 - The MG hierarchy level field cannot be maintained
  
  
  Cause:
  This warning message typically occurs when you try to maintain or change the Material Group (MG) hierarchy level field in a way that is not allowed by the system. The MG hierarchy is a structured classification of material groups, and certain hierarchy levels are system-controlled or restricted from manual changes.
  Common causes include:
  
  Attempting to manually edit or maintain the hierarchy level field directly in the material master or material group maintenance transaction.
  Trying to assign a hierarchy level that does not exist or is not allowed in the current configuration.
  The hierarchy level field is derived from the structure of the material group hierarchy and cannot be changed independently.
  The system controls the hierarchy levels based on the material group structure, so manual maintenance is restricted.
  
  
  Explanation:
  
  The Material Group (MG) hierarchy is used to classify materials