How To Fix KQ323 - Cost component structure & active: Only new entries allowed

KQ323 - Overview

• Message type: E = Error

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

• Message number: 323

• Message text: Cost component structure & active: Only new entries allowed

What causes this issue?

Changes in the cost assignment of an active cost component structure
will result in a structural interruption in the update of the cost
components. This means that data updated before the change cannot be
compared with data updated after the change.

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?

If you wish to change an active cost component structure, you first
have deactivate it. Before doing this, however, you should carefully
consider the consequences any changes might have for the update of the
cost components.

Error message extract from SAP system. Copyright SAP SE.

KQ323 - Details

• The SAP error message KQ323, which states "Cost component structure & active: Only new entries allowed," typically occurs when you are trying to make changes to an existing cost component structure that is currently active. This error is common in the context of controlling (CO) and product costing modules in SAP.
  
  Cause:
  The error arises because the cost component structure you are trying to modify is already active in the system. In SAP, once a cost component structure is activated, it is locked for changes to ensure data integrity and consistency in cost calculations. This means that you can only add new entries to the structure, but you cannot modify or delete existing ones.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Create a New Cost Component Structure:
  
  If you need to make changes, consider creating a new cost component structure instead of modifying the existing one. You can copy the existing structure and