How To Fix OO633 - You cannot redefine the interface method &

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 633

• Message text: You cannot redefine the interface method &

What causes this issue?

You cannot redefine an interface method implemented in the class.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OO633 - You cannot redefine the interface method & ?

  The SAP error message OO633, which states "You cannot redefine the interface method &," typically occurs in ABAP when you are trying to redefine a method from an interface in a class that does not implement the interface correctly or when there is a mismatch in the method signature.
  Cause:
  
  Incorrect Method Signature: The method you are trying to redefine does not match the signature defined in the interface. This includes differences in parameters, return types, or exceptions.
  Interface Not Implemented: The class you are working with may not have implemented the interface that contains the method you are trying to redefine.
  Access Modifiers: The access level of the method in the class may not match the access level defined in the interface.
  Multiple Inheritance: If the class is inheriting from multiple interfaces or classes, there may be conflicts in method definitions.
  
  Solution:
  
  Check Method Signature: Ensure that the method signature in your class exactly matches the one defined in the interface. This includes the name, parameters, return type, and exceptions.
  Implement the Interface: Make sure that your class implements the interface that contains the method. You can do this by using the INTERFACES keyword in your class definition.
  Access Modifiers: Ensure that the access level of the method in your class is compatible with the interface definition. For example, if the interface method is public, the class method should also be public.
  Review Inheritance: If your class is inheriting from multiple sources, check for any conflicts in method definitions and resolve them accordingly.
  Recompile: After making changes, recompile your class to ensure that the changes take effect.
  
  Related Information:
  
  ABAP Documentation: Refer to the official SAP ABAP documentation for more details on interfaces and method definitions.
  SAP Community: You can find discussions and solutions related to this error on the SAP Community forums, where other developers may have encountered similar issues.
  Debugging Tools: Use the ABAP debugger to step through your code and identify where the error is occurring, which can provide additional context for resolving the issue.
  
  By following these steps, you should be able to resolve the OO633 error and successfully redefine the interface method in your ABAP class.