How To Fix OH001 - Hierarchy maintenance is not supported for class &

OH001 - Overview

• Message type: E = Error

• Message class: OH - Messages Group Maintenance

• Message number: 001

• Message text: Hierarchy maintenance is not supported for class &

What causes this issue?

You called up a function for hierarchy maintenance with class &V1&.
However, hierarchy maintenance is not supported for this class.

How to fix this error?

Use only class 0000 or the <DS:TX.GRP_GROUP_CLASSES>CO classes</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OH001 - Hierarchy maintenance is not supported for class & ?

  The SAP error message OH001, which states "Hierarchy maintenance is not supported for class &," typically occurs when you are trying to maintain a hierarchy for a class that does not support it. This can happen in the context of SAP's classification system, particularly when dealing with characteristics and classes in the SAP Material Management (MM) or Product Lifecycle Management (PLM) modules.
  
  Cause:
  
  Class Type: The class you are trying to maintain may not be configured to support hierarchy maintenance. In SAP, not all class types allow for hierarchical structures.
  Configuration Settings: The class type may not have the necessary settings enabled for hierarchy maintenance.
  Incorrect Class Assignment: You may be trying to assign a hierarchy to a class that is not intended for that purpose.
  
  
  Solution:
  
  
  Check Class Type: Verify the class type you are using. You can do this by navigating to the class in the SAP system and checking its properties. Ensure that