How To Fix KPN031 - Adapt invoicing plan for activity

KPN031 - Overview

• Message type: E = Error

• Message class: KPN - Costing: Networks, Projects

• Message number: 031

• Message text: Adapt invoicing plan for activity

What causes this issue?

An invoicing plan which the system cannot adapt automatically has been
maintained for the activity. However, the system is trying to adapt it
anyway when a quantity, price unit, or execution factor is changed.
Automatic adaptation is only possible in the following partial
invoicing plans:
Partial invoicing plan with billing by percentage
Partial invoicing plan with an item flagged as the final invoice

How to fix this error?

Manually adapt the invoicing plan to reflect the changes you made.

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

Error message extract from SAP system. Copyright SAP SE.

KPN031 - Details

• The SAP error message KPN031, which states "Adapt invoicing plan for activity," typically occurs in the context of project management and controlling, particularly when dealing with billing plans in SAP. This error indicates that there is an issue with the invoicing plan associated with a particular activity or project.
  
  Cause:
  The error can arise due to several reasons, including:
  
  Invoicing Plan Configuration: The invoicing plan for the activity may not be properly configured or may be missing required details.
  Activity Status: The status of the activity may not allow for invoicing, such as being incomplete or not released.
  Billing Type: The billing type assigned to the activity may not be compatible with the invoicing plan.
  Missing Data: Required fields or data related to the invoicing plan may be missing or incorrectly entered.
  Project Structure: The project structure may not align with the invoicing plan requirements.
  
  
  Solution:
  To resolve the KPN031 error, you can take the following steps:
  
  Check Invoicing Plan: