How To Fix MI_MGMT142 - Cannot delete the object; it is still assigned in the hierarchy

MI_MGMT142 - Overview

• Message type: E = Error

• Message class: MI_MGMT - MI: Device Management

• Message number: 142

• Message text: Cannot delete the object; it is still assigned in the hierarchy

Self-Explanatory Message

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MI_MGMT142 - Details

• The SAP error message MI_MGMT142 indicates that you are trying to delete an object (such as a material, equipment, or another master data entity) that is still assigned in a hierarchy. This typically occurs in the context of Material Management (MM) or Plant Maintenance (PM) modules, where objects can be part of various hierarchical structures.
  
  Cause:
  The error occurs because the object you are attempting to delete is still linked to other objects or structures in the system. For example:
  
  The material is still assigned to a BOM (Bill of Materials).
  The equipment is still linked to a maintenance plan or task list.
  The object is part of a classification or hierarchy that prevents its deletion.
  
  
  Solution:
  To resolve this error, you need to identify and remove the assignments or links that are preventing the deletion of the object. Here are the steps you can take:
  
  
  Check Assignments:
  
  Use transaction codes like CS03 (Display BOM), IL03 (Display Equipment), or