How To Fix KA406 - Entry & already exists as a base

SAP Error Message - Details

• Message type: E = Error

• Message class: KA - CO Overhead Costs: Overhead, Accrual Calculation

• Message number: 406

• Message text: Entry & already exists as a base

What causes this issue?

Entry & is already defined as a base and is therefore invalid.

How to fix this error?

Select a valid name.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KA406 - Entry & already exists as a base ?

  The SAP error message KA406 ("Entry & already exists as a base") typically occurs in the context of cost accounting, particularly when dealing with cost center planning or activity type planning. This error indicates that there is an attempt to create or modify a planning entry that already exists in the system, which is not allowed.
  Cause:
  
  Duplicate Entries: The most common cause of this error is that there is already an existing entry in the planning table for the same cost center, activity type, or other relevant fields that you are trying to create or modify.
  Incorrect Data Entry: Sometimes, the error can arise from incorrect data entry or configuration that leads to a conflict with existing records.
  Data Migration Issues: If data has been migrated from another system or if there have been recent changes in the configuration, it may lead to duplicate entries.
  
  Solution:
  
  
  Check Existing Entries: 
  
  Use transaction codes like KP06 (Cost Center Planning) or KP26 (Activity Type Planning) to check if the entry you are trying to create already exists.
  Look for the specific cost center and activity type combination to see if it is already present.
  
  
  
  Modify or Delete Existing Entry: 
  
  If you find that the entry already exists and you need to change it, consider modifying the existing entry instead of creating a new one.
  If the existing entry is incorrect or no longer needed, you may delete it before attempting to create a new one.
  
  
  
  Review Planning Versions: 
  
  Ensure that you are working in the correct planning version. Sometimes, entries may exist in different versions, leading to confusion.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or help files related to cost center planning to ensure that you are following the correct procedures.
  
  
  
  Check Authorizations: 
  
  Ensure that you have the necessary authorizations to make changes to the planning data.
  
  
  
  Contact SAP Support: 
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as KP06, KP26, KSB1, and KSBP for cost center accounting and planning.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to resolve the KA406 error and continue with your cost planning activities in SAP.