How To Fix UPC420 - Hierarchy &1 cannot be used

UPC420 - Overview

• Message type: E = Error

• Message class: UPC - Planning: General Error Messages

• Message number: 420

• Message text: Hierarchy &1 cannot be used

What causes this issue?

You can only use those BW hierarchies that have a unique root 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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UPC420 - Hierarchy &1 cannot be used ?

  The SAP error message UPC420, which states "Hierarchy &1 cannot be used," typically occurs in the context of SAP's planning and controlling modules, particularly when dealing with hierarchies in the context of planning functions or reporting.
  
  Cause:
  The error can arise due to several reasons, including:
  
  Hierarchy Not Active: The hierarchy you are trying to use may not be active or may not have been properly defined in the system.
  Incorrect Hierarchy Type: The hierarchy type may not be compatible with the operation you are trying to perform.
  Missing Authorizations: The user may not have the necessary authorizations to access or use the specified hierarchy.
  Hierarchy Deletion: The hierarchy may have been deleted or is in a state that prevents it from being used.
  Data Consistency Issues: There may be inconsistencies in the data related to the hierarchy, such as missing nodes or incorrect relationships.
  
  
  Solution:
  To resolve the UPC420 error, you can take the following steps:
  
  
  Check Hierarchy Status:
  
  Go