How To Fix EC134 - Unable to assign the function to the pushbutton

EC134 - Overview

• Message type: E = Error

• Message class: EC - Development environment: Menu Painter

• Message number: 134

• Message text: Unable to assign the function to the pushbutton

What causes this issue?

Functions assigned to a pushbutton must be assigned to a function key
first, but no free function keys exist.

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

System Response

Assignment terminated.

How to fix this error?

Assign the function to a function key and then to a pushbutton.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EC134 - Unable to assign the function to the pushbutton ?

  The SAP error message EC134, "Unable to assign the function to the pushbutton," typically occurs when there is an issue with the configuration of a pushbutton in a SAP GUI screen or a custom transaction. This error can arise due to various reasons, including:
  Causes:
  
  Function Module Not Found: The function module or method you are trying to assign to the pushbutton does not exist or is not correctly defined.
  Incorrect Syntax: There may be a syntax error in the code or configuration that prevents the assignment from being processed.
  Authorization Issues: The user may not have the necessary authorizations to assign functions to pushbuttons.
  Screen 
  Configuration Issues: The screen or GUI element may not be properly configured, leading to issues in assigning functions.
  Missing or Inactive Function Group: The function group that contains the function module may be inactive or missing.
  
  Solutions:
  
  Check Function Module: Verify that the function module or method you are trying to assign