How To Fix KH178 - Hierarchy & is not unique

KH178 - Overview

• Message type: E = Error

• Message class: KH - CO-PA Reporting

• Message number: 178

• Message text: Hierarchy & is not unique

What causes this issue?

Only proper hierarchies are supported. That means that each
characteristic value must be assigned to exactly one node. This is not
the case here (see &V3& &V4&).

How to fix this error?

Check your hierarchy &V1& or choose a different hierarchy.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KH178 - Hierarchy & is not unique ?

  The SAP error message KH178 ("Hierarchy & is not unique") typically occurs in the context of SAP Controlling (CO) when dealing with cost center hierarchies or other hierarchical structures. This error indicates that the system has encountered multiple entries that match the criteria for a hierarchy, leading to ambiguity.
  
  Cause:
  
  Duplicate Hierarchy Entries: The most common cause of this error is that there are multiple entries in the hierarchy that have the same identifier or name, which makes it unclear which one should be used.
  Incorrect Configuration: There may be a misconfiguration in the hierarchy settings or the way the hierarchy is defined in the system.
  Data Integrity Issues: There could be issues with data integrity, such as inconsistencies in the master data that define the hierarchy.
  
  
  Solution:
  
  Check Hierarchy Definitions: Go to the transaction code for maintaining hierarchies (e.g., KSH1 for cost center hierarchies) and check for duplicate entries. Ensure that each hierarchy has a