How To Fix SALV_EXCEPTION101 - Column &3 already exists (class &1 method &2)

SALV_EXCEPTION101 - Overview

• Message type: E = Error

• Message class: SALV_EXCEPTION - Exception Messages

• Message number: 101

• Message text: Column &3 already exists (class &1 method &2)

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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SALV_EXCEPTION101 - Details

• The SAP error message SALV_EXCEPTION101 indicates that there is an attempt to add a column to an ALV (ABAP List Viewer) grid that already exists. This error typically occurs when you are trying to define or add a column to an ALV table that has already been defined in the context of the current ALV object.
  
  Cause:
  
  Duplicate Column Definition: The most common cause of this error is that the column you are trying to add has already been defined in the ALV grid. This can happen if you are trying to add the same column multiple times in your code.
  Incorrect Logic: There may be a logical error in your code where the column addition is being executed more than once, possibly due to loops or conditional statements that are not correctly structured.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Column Definitions: Review your code to ensure that you are