How To Fix KPN029 - There is already a unit costing for activity &

KPN029 - Overview

• Message type: E = Error

• Message class: KPN - Costing: Networks, Projects

• Message number: 029

• Message text: There is already a unit costing for activity &

What causes this issue?

There is already an invoicing plan for activity &V1&. You cannot create
a unit costing and an invoicing plan simultaneously for an activity.

System Response

You cannot create the invoicing plan.

How to fix this error?

Delete the unit costing if you do not require it any more. You can then
create the invoicing plan.

Error message extract from SAP system. Copyright SAP SE.

KPN029 - Details

• The SAP error message KPN029, which states "There is already a unit costing for activity &," typically occurs in the context of cost planning and activity-based costing within SAP. This error indicates that there is already an existing unit cost for the specified activity, and the system does not allow for the creation of a duplicate entry.
  
  Cause:
  
  Duplicate Entry: The most common cause of this error is an attempt to create a new unit cost for an activity that already has a unit cost defined in the system.
  Incorrect Data Entry: There may be a mistake in the data entry process, such as trying to enter a cost for an activity that has already been defined.
  
  Configuration Issues: There might be issues with the configuration settings in the controlling (CO) module that prevent the creation of new cost entries.
  
  
  Solution:
  
  Check Existing Costs: Before attempting to create a new unit cost, check the existing unit