How To Fix KX231 - The top node & does not represent the top of the hierarchy.

KX231 - Overview

• Message type: E = Error

• Message class: KX - EC-EIS/EC-BP: Data basis, data collection

• Message number: 231

• Message text: The top node & does not represent the top of the hierarchy.

What causes this issue?

The hierarchy has no unique top node.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Restructure the hierarchy or assign the top node to a unique top node.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

KX231 - Details

• The SAP error message KX231, which states "The top node & does not represent the top of the hierarchy," typically occurs in the context of SAP Controlling (CO) when working with cost center hierarchies or other hierarchical structures. This error indicates that the node you are trying to use as the top of a hierarchy is not correctly defined or does not meet the necessary criteria to be considered the top node.
  Causes:
  
  Incorrect Hierarchy Definition: The node you are trying to set as the top of the hierarchy may not be defined correctly in the system.
  Missing Parent Node: The top node may have a parent node that is not defined or is incorrectly set up.
  Circular References: There may be circular references in the hierarchy that prevent the system from recognizing the top node.
  Inactive Nodes: The node you are trying to use may be inactive or not properly activated in the hierarchy.
  Data