How To Fix RA393 - Cannot copy to &, method already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: RA - Monitoring structure dialog message

• Message number: 393

• Message text: Cannot copy to &, method already exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RA393 - Cannot copy to &, method already exists ?

  The SAP error message RA393 "Cannot copy to &, method already exists" typically occurs in the context of the SAP ABAP programming environment, particularly when dealing with class definitions and method implementations. This error indicates that you are trying to create or copy a method in a class where a method with the same name already exists.
  Cause:
  
  
  Duplicate Method Name: The most common cause of this error is that you are attempting to define a method in a class that already has a method with the same name. This can happen when copying code or when trying to create a new method without realizing that it already exists.
  
  
  Inheritance Issues: If you are working with class inheritance, the method might exist in a parent class, and you are trying to redefine it in a child class without using the appropriate keywords (like REDEFINITION).
  
  
  Solution:
  
  
  Check Existing Methods: Review the class definition to see if a method with the same name already exists. You can do this by navigating to the class in the ABAP Workbench (SE80 or SE24) and checking the method list.
  
  
  Rename the Method: If you are trying to create a new method, consider renaming it to something unique that does not conflict with existing method names.
  
  
  Use REDEFINITION: If you are trying to override a method from a parent class, ensure you are using the REDEFINITION keyword in your method definition.
  
  
  Remove Duplicate Code: If you are copying code from another class or method, ensure that you are not duplicating existing functionality unnecessarily.
  
  
  Check for Interfaces: If the method is part of an interface that the class implements, ensure that you are not trying to redefine it incorrectly.
  
  
  Related Information:
  
  ABAP Workbench (SE80): Use this tool to navigate through classes and methods to identify existing definitions.
  Class Builder (SE24): This transaction allows you to create and manage classes and their methods.
  Documentation: Refer to SAP's official documentation on ABAP classes and methods for best practices on method naming and class design.
  Debugging: If you are unsure where the conflict is occurring, you can use debugging tools to trace method calls and definitions.
  
  By following these steps, you should be able to resolve the RA393 error and successfully manage your class methods in SAP.