How To Fix OO010 - &1 is not a &2, it is a &3

OO010 - Overview

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 010

• Message text: &1 is not a &2, it is a &3

What causes this issue?

You tried to access &V1& as&V2&. However, &V1& is a &V3&. This action
cannot be performed successfully.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OO010 - &1 is not a &2, it is a &3 ?

  The SAP error message "OO010 &1 is not a &2, it is a &3" typically indicates a type mismatch in the context of object-oriented programming within SAP ABAP. This error occurs when the system expects an object of a certain type (denoted by &2) but instead receives an object of a different type (denoted by &3).
  
  Cause:
  
  Type Mismatch: The most common cause of this error is that the program is trying to use an object that is not of the expected class or interface type. For example, if a method is expecting an object of class A but receives an object of class B, this error will be triggered.
  Incorrect Object Instantiation: The object may not have been instantiated correctly, or the wrong class may have been used during instantiation.
  Inheritance Issues: If the object is expected to be of a certain subclass but is actually of a different subclass or superclass, this