How To Fix OO630 - The class & cannot be used as a superclass

OO630 - Overview

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 630

• Message text: The class & cannot be used as a superclass

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message OO630 - The class & cannot be used as a superclass ?

  The SAP error message OO630, which states "The class & cannot be used as a superclass," typically occurs in the context of ABAP Object-Oriented programming when there is an issue with class inheritance. Here are the common causes, solutions, and related information for this error:
  Causes:
  
  Non-Abstract Class: The class you are trying to use as a superclass is not defined as an abstract class, and it may not be suitable for inheritance.
  Final Class: The class you are trying to inherit from is marked as FINAL, which means it cannot be subclassed.
  Incorrect Visibility: The class or its methods may not have the appropriate visibility (e.g., PUBLIC, PROTECTED) that allows it to be inherited.
  Circular Inheritance: There may be a circular reference in the class hierarchy that prevents the class from being used as a superclass.
  Interface vs. Class: You might be trying to use an interface as a superclass, which is not allowed in