How To Fix KU305 - Hierarchy error: & already contained in the hierarchy

KU305 - Overview

• Message type: E = Error

• Message class: KU - Costing: Rollup

• Message number: 305

• Message text: Hierarchy error: & already contained in the hierarchy

What causes this issue?

Criterion &v1& already exists in the hierarchy. It may not occur more
than once.

How to fix this error?

Delete your entry.

Error message extract from SAP system. Copyright SAP SE.

KU305 - Details

• The SAP error message KU305, which states "Hierarchy error: & already contained in the hierarchy," typically occurs in the context of SAP's Controlling (CO) module, particularly when dealing with cost center hierarchies or other hierarchical structures.
  
  Cause:
  This error usually arises when you attempt to add a node (such as a cost center or a profit center) to a hierarchy that already contains that node. The system does not allow duplicate entries in a hierarchy, which is why you receive this error message.
  
  Solution:
  To resolve the KU305 error, you can follow these steps:
  
  
  Check the Hierarchy Structure:
  
  Navigate to the hierarchy in question and review its structure to confirm whether the node you are trying to add is already present.
  You can do this by using transaction codes like KSH1 (for cost center hierarchy) or KSH2 (for displaying cost center hierarchy).
  
  
  
  Remove Duplicate Entries:
  
  If you find that the node is indeed already part of the hierarchy, you