How To Fix KY347 - An exception already exists for column &1

KY347 - Overview

• Message type: E = Error

• Message class: KY - Messages for SAP-EIS: Presentation

• Message number: 347

• Message text: An exception already exists for column &1

What causes this issue?

You cannot create an exception for this column because an exception
already exists.

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?

If you wish to change the existing exception, choose 'Change
exception'.
If you really want to create a new exception, you should note that you
can create only one exception per area of validity. If you have already
created an exception for column &V1&, you can create further exceptions
with reference to &V1&, however only based on certain cells.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KY347 - An exception already exists for column &1 ?

  The SAP error message KY347, which states "An exception already exists for column &1," typically occurs in the context of SAP Controlling (CO) when you are trying to create or modify a report or a planning layout that involves exceptions for specific columns. This error indicates that there is an attempt to define an exception for a column that has already been defined.
  
  Cause:
  The primary cause of this error is that the system has detected that an exception for the specified column (denoted by &1) is already defined in the report or layout you are working with. This can happen if:
  
  You are trying to add a new exception for a column that already has an existing exception.
  There is a duplicate entry in the configuration of exceptions for that column.
  
  
  Solution:
  To resolve the KY347 error, you can follow these steps:
  
  
  Check Existing Exceptions:
  
  Go to the report or planning layout where the error occurred.
  Review the