How To Fix KZ027 - Var. key of lower-level cost objects overwritten with new value

KZ027 - Overview

• Message type: E = Error

• Message class: KZ - Cost Object Repetitive Mfg / Process Mfg

• Message number: 027

• Message text: Var. key of lower-level cost objects overwritten with new value

What causes this issue?

All cost object IDs in a cost object hierarchy must have the same
variance key. You entered a new variance key for the highest node in
the hierarchy.

System Response

The system copied the new variance key into the master data of all the
lower-level cost object IDs.

Error message extract from SAP system. Copyright SAP SE.

KZ027 - Details

• The SAP error message KZ027, which states "Var. key of lower-level cost objects overwritten with new value," typically occurs in the context of cost accounting and controlling (CO) when there is an inconsistency in the assignment of variable keys for cost objects. This error can arise during various processes, such as when posting costs or during the settlement of internal orders or projects.
  
  Cause:
  The error is generally caused by one of the following issues:
  
  
  Inconsistent Variable Key Assignment: The variable key assigned to a lower-level cost object (like a cost center or internal order) is being changed or overwritten, which is not allowed if there are already postings or allocations made against that object.
  
  
  Master Data Changes: Changes made to the master data of cost objects (like cost centers or internal orders) that affect the variable key can lead to this error if the system detects that the new key conflicts with existing