How To Fix KS090 - Real cost center already exists

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 090

• Message text: Real cost center already exists

What causes this issue?

This cost center has already been entered completely in the system.

System Response

Processing is terminated.

How to fix this error?

You can maintain the cost center using the normal <DS:TRAN.KS02>master
data transactions</>. You can also delete the cost center if no
dependent records exist.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KS090 - Real cost center already exists ?

  The SAP error message KS090, which states "Real cost center already exists," typically occurs when you attempt to create a new cost center in SAP that has the same identifier as an existing real cost center. This can happen during the creation of cost centers in the Controlling (CO) module.
  Cause:
  
  Duplicate Cost Center ID: The most common cause of this error is that the cost center ID you are trying to create already exists in the system as a real cost center.
  Incorrect Data Entry: There may be a typographical error in the cost center ID you are trying to create, leading to confusion with an existing cost center.
  Data Migration Issues: If you are migrating data from another system or performing mass uploads, there may be duplicates in the data being imported.
  
  Solution:
  
  
  Check Existing Cost Centers: Before creating a new cost center, check the existing cost centers in the system to ensure that the ID you want to use is not already taken. You can do this by navigating to the cost center master data transaction (e.g., transaction code KS01 for creating cost centers or KS02 for changing them).
  
  
  Use a Different ID: If the cost center ID you are trying to create already exists, choose a different, unique ID for the new cost center.
  
  
  Review Data Migration: If this error occurs during a data migration process, review the data being imported to ensure there are no duplicates. You may need to clean up the data before re-attempting the import.
  
  
  Consult Documentation: If you are unsure about the cost center structure or naming conventions in your organization, consult your internal documentation or reach out to your SAP administrator for guidance.
  
  
  Check for Deactivated Cost Centers: If you are trying to create a cost center with an ID that was previously used but is now deactivated, you may need to reactivate it instead of creating a new one.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  KS01: Create Cost Center
  KS02: Change Cost Center
  KS03: Display Cost Center
  
  
  Cost Center Hierarchy: Understand the organizational structure of cost centers in your company, as this can help in identifying naming conventions and existing cost centers.
  SAP Documentation: Refer to SAP Help documentation for detailed information on cost center accounting and management.
  
  By following these steps, you should be able to resolve the KS090 error and successfully manage your cost centers in SAP.