How To Fix KU326 - Hierarchy code must start with the CO area

SAP Error Message - Details

• Message type: E = Error

• Message class: KU - Costing: Rollup

• Message number: 326

• Message text: Hierarchy code must start with the CO area

What causes this issue?

A system error occurred.

How to fix this error?

Please inform your system administrator or contact the SAP hotline with
details of the message.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KU326 - Hierarchy code must start with the CO area ?

  The SAP error message KU326, which states "Hierarchy code must start with the CO area," typically occurs in the context of controlling (CO) module activities, particularly when dealing with cost center hierarchies or other hierarchical structures in SAP.
  Cause:
  This error arises when you are trying to create or modify a hierarchy code that does not start with the correct controlling area (CO area) identifier. In SAP, hierarchy codes are often structured to include the controlling area as a prefix to ensure that they are unique and correctly associated with the relevant organizational unit.
  Solution:
  To resolve this error, you should ensure that the hierarchy code you are trying to use starts with the appropriate controlling area code. Here are the steps you can take:
  
  
  Check the Controlling Area: Verify the controlling area you are working with. You can do this by navigating to the controlling area settings in SAP.
  
  
  Modify the Hierarchy Code: When creating or editing the hierarchy code, make sure that it begins with the correct controlling area code. For example, if your controlling area code is "1000", your hierarchy code should start with "1000".
  
  
  Use the Correct Transaction: Ensure you are using the correct transaction code for creating or modifying the hierarchy. Common transactions include:
  
  KSH1: Create Cost Center Hierarchy
  KSH2: Change Cost Center Hierarchy
  KSH3: Display Cost Center Hierarchy
  
  
  
  Consult Documentation: If you are unsure about the structure of the hierarchy code, refer to your organization's documentation or SAP help resources for guidance on naming conventions.
  
  
  Check Authorizations: Ensure that you have the necessary authorizations to create or modify hierarchy codes in the controlling area.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific updates or patches related to this error message.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  Training and Documentation: Consider reviewing SAP training materials or documentation related to the controlling module for a better understanding of hierarchy structures.
  
  By following these steps, you should be able to resolve the KU326 error and successfully create or modify your hierarchy code in SAP.