How To Fix SALV_X_API126 - Method call not allowed after first display

SALV_X_API126 - Overview

• Message type: E = Error

• Message class: SALV_X_API - Messages for ALV API exceptions

• Message number: 126

• Message text: Method call not allowed after first display

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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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Smart SAP Assistant

• What is the cause and solution for SAP error message SALV_X_API126 - Method call not allowed after first display ?

  The SAP error message SALV_X_API126: Method call not allowed after first display typically occurs when you are trying to call a method on an ALV (ABAP List Viewer) object after it has already been displayed. In the context of SAP ABAP programming, once the ALV grid has been rendered on the screen, certain methods cannot be called anymore because the display process has already been finalized.
  
  Cause:
  The error is caused by attempting to modify or interact with the ALV object after the display method has been executed. This includes trying to set properties, add data, or call methods that are not allowed post-display.
  
  Solution:
  To resolve this error, you should ensure that all necessary configurations and method calls are made before the display method is called. Here are some steps to follow:
  
  
  Check Method Calls: Review your code to ensure that all method calls related to the ALV object are made before the display