How To Fix 6A126 - Data on CEA (BE &1 for &2) already exists

6A126 - Overview

• Message type: E = Error

• Message class: 6A - Real estate messages rent adjustment

• Message number: 126

• Message text: Data on CEA (BE &1 for &2) already exists

What causes this issue?

A cost efficiency analysis already exists for BE &V1& per &V2&.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Only one cost efficiency analysis may exist for any one date. Choose
another date.

Error message extract from SAP system. Copyright SAP SE.

6A126 - Details

• The SAP error message 6A126 indicates that there is an attempt to create or update data in the CEA (Cost Element Accounting) that already exists. The message format typically includes placeholders like &1 and &2, which represent specific identifiers related to the cost element or the transaction.
  
  Cause:
  The error occurs when:
  
  You are trying to create a cost element that already exists in the system.
  There is an attempt to post a transaction that references a cost element that has already been defined in the CEA.
  There may be a duplicate entry in the database for the specified cost element.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Entries:
  
  Use transaction codes like KA03 (Display Cost Element) to check if the cost element already exists in the system.
  Verify the details of the cost element to ensure that you are not duplicating an existing entry.
  
  
  
  Modify or Delete Existing Entry:
  
  If the cost element already exists