How To Fix KS351 - Area &1 is not possible, as cost center &2 exists in &3

KS351 - Overview

• Message type: E = Error

• Message class: KS - RK-S Master Data Maintenance

• Message number: 351

• Message text: Area &1 is not possible, as cost center &2 exists in &3

What causes this issue?

You created a new validity period for cost center &v2& in hierarchy
area &v1&. However, cost center &v2& already exists under hierarchy
node &v3&.
The assignment of a cost center to an area of the standard hierarchy
must be unique across all validity periods.

System Response

Processing is terminated.

How to fix this error?

Create the new validity period for cost center &v2& in area &v3& or
first move the existing validity period to hierarchy area &v1&.

Error message extract from SAP system. Copyright SAP SE.

KS351 - Details

• The SAP error message KS351 indicates that there is an issue with the cost center assignment in the system. Specifically, it means that the area you are trying to use is not valid because a cost center already exists in a different controlling area. Here’s a breakdown of the cause, potential solutions, and related information:
  
  Cause:
  
  Cost Center Exists in Another Controlling Area: The error occurs when you attempt to assign a cost center to a controlling area that is already assigned to a different controlling area. Each cost center must be unique within its controlling area.
  Incorrect Configuration: There may be a configuration issue where the cost center is not properly assigned to the intended controlling area.
  Data Consistency Issues: There might be inconsistencies in the master data, such as the cost center being incorrectly defined or duplicated.
  
  
  Solution:
  
  
  Check Cost Center Assignment:
  
  Go to the transaction code KS03 (Display Cost Center) and check the details