How To Fix KQ354 - Cost component structure &1 inconsistent: duplicate cost field assignment

SAP Error Message - Details

• Message type: E = Error

• Message class: KQ - Error Messages for Customizing Product Costing

• Message number: 354

• Message text: Cost component structure &1 inconsistent: duplicate cost field assignment

What causes this issue?

Cost component structure &v1& contains cost components that have the
same cost fields (V_CKH3-EL_HV and V_CKH3-EL_HF). This was determined
for cost component &v2&.
The cost fields are assigned internally and are not visible in the user
interface.

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?

Use the Compare tool in view maintenance to compare the cost components
of your test system with the cost components your production system.
Delete the cost components from your test system that do not exist in
your production system and have duplicate numbers in the fields
V_CKH3-EL_HV and V_CKH3-EL_HF.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KQ354 - Cost component structure &1 inconsistent: duplicate cost field assignment ?

  The SAP error message KQ354 indicates that there is an inconsistency in the cost component structure due to a duplicate assignment of cost fields. This typically occurs when you are trying to configure or maintain cost component structures in the Controlling (CO) module, particularly in relation to cost planning or cost object controlling.
  Cause:
  The error arises when:
  
  Duplicate Assignments: The same cost field is assigned more than once to the same cost component in the cost component structure.
  Configuration Issues: There may be issues in the configuration of the cost component structure, such as incorrect settings or missing entries.
  Data Integrity Issues: There may be inconsistencies in the underlying data that lead to duplicate assignments.
  
  Solution:
  To resolve the KQ354 error, follow these steps:
  
  
  Check Cost Component Structure:
  
  Go to the configuration transaction for cost component structures (Transaction code: OKTZ).
  Review the cost component structure that is causing the error.
  Look for any duplicate assignments of cost fields to the same cost component.
  
  
  
  Remove Duplicates:
  
  If you find duplicate assignments, remove the duplicates so that each cost field is assigned only once to each cost component.
  
  
  
  Validate Configuration:
  
  Ensure that the configuration of the cost component structure is correct and adheres to the business requirements.
  Make sure that all necessary cost fields are included and that there are no unnecessary duplicates.
  
  
  
  Transport Requests:
  
  If the changes are made in a development environment, ensure that they are properly transported to the quality and production environments.
  
  
  
  Testing:
  
  After making the necessary changes, test the cost component structure to ensure that the error no longer occurs and that the system behaves as expected.
  
  
  
  Related Information:
  
  Cost Component Structure: This is a key configuration in SAP CO that defines how costs are broken down into various components for reporting and analysis.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OKTZ (Cost Component Structure) and OKB9 (Cost Element).
  Documentation: Refer to SAP Help documentation for detailed guidance on configuring cost component structures and understanding cost elements.
  
  If the issue persists after following these steps, it may be beneficial to consult with an SAP CO consultant or reach out to SAP support for further assistance.