How To Fix OO301 - Parameter &1 &2 &3: Inconsistency in method/event &1 &2 (CMPTYPE)

OO301 - Overview

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 301

• Message text: Parameter &1 &2 &3: Inconsistency in method/event &1 &2 (CMPTYPE)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message OO301 - Parameter &1 &2 &3: Inconsistency in method/event &1 &2 (CMPTYPE) ?

  The SAP error message OO301 indicates an inconsistency in a method or event related to a component type (CMPTYPE). This error typically arises in the context of Object-Oriented Programming (OOP) within SAP ABAP, particularly when dealing with classes, methods, and events.
  
  Cause:
  The error can be caused by several factors, including:
  
  Inconsistent Method/Event Definitions: The method or event may be defined in a class but not implemented correctly in the subclass or may have been deleted or renamed.
  Inheritance Issues: If a subclass does not properly inherit from a superclass, or if there are changes in the superclass that are not reflected in the subclass, inconsistencies can arise.
  Changes in Component Type: If the component type (CMPTYPE) has been modified (e.g., changes in the interface or abstract class), it can lead to inconsistencies in the methods or events that depend on it.
  Transport Issues: If changes were transported from one system to another (e.g., from development