How To Fix GP647 - Activity prices have already been planned

GP647 - Overview

• Message type: E = Error

• Message class: GP - FI-SL and CO planning

• Message number: 647

• Message text: Activity prices have already been planned

What causes this issue?

You want to set the indicator for activity price calculation with
periodic average prices. However activity prices have already been
planned in version &V1&/&V2&.

How to fix this error?

Repeat activity price calculation.
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Error message extract from SAP system. Copyright SAP SE.

GP647 - Details

• The SAP error message GP647 ("Activity prices have already been planned") typically occurs in the context of SAP's Controlling (CO) module, particularly when dealing with activity-based costing and planning. This error indicates that you are trying to change or plan activity prices for a cost center or internal order where prices have already been set in a previous planning run.
  
  Cause:
  
  Existing Planning Data: The primary cause of this error is that activity prices for the specified cost center or internal order have already been planned in the system. SAP does not allow overwriting existing planned prices without first resetting or deleting the previous planning data.
  Planning Version: You may be trying to plan in a version that is already locked or has existing data.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to change the planned prices.
  
  
  Solution:
  
  
  Check Existing Planning Data: 
  
  Use transaction codes like KP06 (for cost centers) or KP26