How To Fix GTR_MF025 - Class &1 must implement interface &2

GTR_MF025 - Overview

• Message type: E = Error

• Message class: GTR_MF - Multifunding Message Class

• Message number: 025

• Message text: Class &1 must implement interface &2

What causes this issue?

You entered the class &V1& to handle the rule values for the
customer-specific field &V3& of the customer include CI_CUST_SPEC_FLDS.
The class must implement the interface &V2& .

System Response

Processing canceled.

How to fix this error?

Implement interface &V2& within class &V1&.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

GTR_MF025 - Details

• The SAP error message GTR_MF025 indicates that a class (denoted by &1) is expected to implement a specific interface (denoted by &2), but it does not. This error typically arises in the context of ABAP programming, particularly when dealing with object-oriented programming and interfaces.
  
  Cause:
  
  
  Class Definition: The class defined in your code does not implement the required interface. This can happen if:
  
  The class was created without implementing the interface.
  The interface was changed or removed after the class was created.
  There is a typo in the class or interface name.
  
  
  
  Inheritance Issues: If the class is supposed to inherit from a superclass that implements the interface, and it does not, this error can occur.
  
  
  Code Changes: If the interface was modified (methods added or changed) and the class was not updated accordingly, this error may arise.
  
  
  
  Solution:
  
  
  Implement the Interface:
  
  Open the class definition in the ABAP Workbench (SE80 or SE24).
  Ensure that the class implements the specified interface.