How To Fix KPN086 - You cannot change the controlling area; Easy Cost Planning already exists

KPN086 - Overview

• Message type: E = Error

• Message class: KPN - Costing: Networks, Projects

• Message number: 086

• Message text: You cannot change the controlling area; Easy Cost Planning already exists

What causes this issue?

You cannot change the controlling area because a costing already exists
for the project.
If you create a new project using a template, the system also copies
the costing created for the template using Easy Cost Planning.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

The controlling area cannot be changed.

How to fix this error?

To change the controlling area, you must first access Easy Cost
Planning and delete the costings copied.

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 KPN086 - You cannot change the controlling area; Easy Cost Planning already exists ?

  The SAP error message KPN086 indicates that you are trying to change the controlling area in a situation where Easy Cost Planning (ECP) has already been set up for that controlling area. This error typically arises when you attempt to modify the controlling area in a way that is not permitted due to existing configurations or data.
  
  Cause:
  
  Existing Easy Cost Planning Data: The primary cause of this error is that there are already planning data or configurations in place for the controlling area you are trying to change.
  Data Integrity: SAP enforces data integrity rules to ensure that changes do not lead to inconsistencies in the planning data.
  
  
  Solution:
  To resolve this error, you can consider the following steps:
  
  
  Check Existing Planning Data: Review the existing Easy Cost Planning data for the controlling area. If there are existing plans, you may need to delete or adjust them before changing the controlling area.
  
  
  Delete Planning Versions: If