How To Fix OO018 - &1 and &2 are not compatible. Unable to copy &3 &4

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 018

• Message text: &1 and &2 are not compatible. Unable to copy &3 &4

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message OO018 - &1 and &2 are not compatible. Unable to copy &3 &4 ?

  The SAP error message "OO018 &1 and &2 are not compatible. Unable to copy &3 &4" typically occurs in the context of object-oriented programming or when dealing with class and object management in SAP. This error indicates that there is an incompatibility between two objects or classes that you are trying to work with, such as copying or inheriting from one to another.
  
  Cause:
  
  Incompatible Class Types: The two classes or objects you are trying to copy or manipulate are not compatible due to differences in their definitions, such as different inheritance hierarchies or incompatible attributes.
  Different Interfaces: The classes may implement different interfaces or may not implement the required interfaces that allow for compatibility.
  Access Modifiers: There may be access restrictions (public, protected, private) that prevent the operation from being completed.
  Data Types: The data types of the attributes in the classes may not match, leading to incompatibility.
  
  
  Solution:
  
  Check Class Definitions: Review the definitions of