How To Fix /PM0/3FWM_TOOL059 - &1 method replaced but 'ReplaceInterfaceMethod' callback not declared

/PM0/3FWM_TOOL059 - Overview

• Message type: E = Error

• Message class: /PM0/3FWM_TOOL -

• Message number: 059

• Message text: &1 method replaced but 'ReplaceInterfaceMethod' callback not declared

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PM0/3FWM_TOOL059 - &1 method replaced but 'ReplaceInterfaceMethod' callback not declared ?

  The SAP error message /PM0/3FWM_TOOL059 &1 method replaced but 'ReplaceInterfaceMethod' callback not declared typically occurs in the context of ABAP programming, particularly when working with interface methods and their implementations. This error indicates that a method has been replaced, but the necessary callback for handling this replacement has not been declared.
  
  Cause:
  
  Method Replacement: The error arises when a method in an interface is replaced by another method, but the system cannot find the corresponding callback method (ReplaceInterfaceMethod) that should handle this replacement.
  Missing Declaration: The callback method is either not declared in the class or interface that is supposed to implement it, or it is declared incorrectly.
  Inconsistent Interface Implementation: If the interface has been modified (e.g., methods added or removed) and the implementing class has not been updated accordingly, this can lead to such errors.
  
  
  Solution:
  
  
  Declare the Callback Method: Ensure that the ReplaceInterfaceMethod callback is declared in the class or interface that is