How To Fix KT155 - Hierarchy & is already assigned to controlling area &

SAP Error Message - Details

• Message type: E = Error

• Message class: KT - RK Message Table Maintenance

• Message number: 155

• Message text: Hierarchy & is already assigned to controlling area &

What causes this issue?

You entered an invalid hierarchy:
INCLUDE RKS_0001 OBJECT DOKU ID TX LANGUAGE EN

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?

Choose a valid hierarchy.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KT155 - Hierarchy & is already assigned to controlling area & ?

  The SAP error message KT155 typically indicates that a hierarchy is already assigned to a controlling area, and you are attempting to perform an action that conflicts with this assignment. This error often arises in the context of controlling (CO) module activities, particularly when dealing with cost centers, profit centers, or internal orders.
  Cause:
  
  Hierarchy Already Assigned: The hierarchy you are trying to assign or modify is already linked to a specific controlling area.
  Incorrect Configuration: There may be an attempt to assign a hierarchy that is not compatible with the existing configuration of the controlling area.
  Data Integrity Issues: There might be inconsistencies in the data or configuration settings that prevent the action from being completed.
  
  Solution:
  
  
  Check Existing Assignments: 
  
  Go to the relevant transaction (e.g., KSH1 for cost center hierarchy) and check if the hierarchy is already assigned to the controlling area.
  If it is, you may need to decide whether to use the existing hierarchy or create a new one.
  
  
  
  Modify or Delete Existing Hierarchy:
  
  If you need to change the hierarchy, you may need to first remove the existing assignment before making new assignments.
  Use transaction codes like KSH2 (Change Hierarchy) or KSH3 (Display Hierarchy) to manage the hierarchy.
  
  
  
  Create a New Hierarchy:
  
  If the existing hierarchy cannot be modified or deleted, consider creating a new hierarchy that can be assigned to the controlling area.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or help files related to controlling area configurations and hierarchy management for additional guidance.
  
  
  
  Check Authorizations: 
  
  Ensure that you have the necessary authorizations to make changes to hierarchies and controlling area settings.
  
  
  
  Contact SAP Support: 
  
  If the issue persists and you cannot resolve it, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as KSH1 (Create Hierarchy), KSH2 (Change Hierarchy), and KSH3 (Display Hierarchy).
  Controlling Area Configuration: Understand the configuration settings of your controlling area, as they can impact how hierarchies are managed.
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide specific fixes or workarounds.
  
  By following these steps, you should be able to address the KT155 error and manage your hierarchies effectively within SAP.