How To Fix OL721 - The object type already supports the method '&1' from another interface


OL721 - Overview

  • Message type: E = Error

  • Message class: OL - Workflow object types: Run-time system

  • Message number: 721

  • Message text: The object type already supports the method '&1' from another interface

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  • Self-Explanatory Message

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Smart SAP Assistant

  • What is the cause and solution for SAP error message OL721 - The object type already supports the method '&1' from another interface ?
    The SAP error message OL721 indicates that there is a conflict in the implementation of methods in an ABAP class or interface. Specifically, it means that the object type (class) you are trying to implement already has a method with the same name as the one you are trying to implement from another interface. This typically occurs when a class implements multiple interfaces that define methods with the same name.
    
    Cause: Multiple Interface Implementations: The class is implementing two or more interfaces that have a method with the same name. Inheritance Conflicts: If the class inherits from a superclass that already implements the method, and you are trying to implement it again from an interface. Method Signature Mismatch: If the method signatures (parameters, return types) do not match exactly, it can lead to confusion in implementation.
    Solution: Check Interface Definitions: Review the interfaces that the class is implementing. Identify the methods that have the same name

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