How To Fix FOX0088 - Object type &1: Class &2 does not inherit from class &3

SAP Error Message - Details

• Message type: E = Error

• Message class: FOX0 - FOX Customizing

• Message number: 088

• Message text: Object type &1: Class &2 does not inherit from class &3

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 FOX0088 - Object type &1: Class &2 does not inherit from class &3 ?

  The SAP error message FOX0088 indicates that there is an issue with class inheritance in the ABAP Object-Oriented programming environment. Specifically, it means that the class you are trying to use (class &2) does not inherit from the expected parent class (class &3). This can occur in various scenarios, such as when you are trying to instantiate an object or when you are using polymorphism.
  Cause:
  
  Incorrect Class Definition: The class you are trying to use does not extend the expected parent class. This could be due to a mistake in the class definition or an oversight in the design.
  Typographical Error: There might be a typo in the class name or the parent class name.
  Changes in Class Hierarchy: If the class hierarchy has been modified (e.g., a class was changed to not inherit from another class), it can lead to this error.
  Interface Implementation: If you are trying to use an interface that expects a certain class hierarchy, and the class does not implement it correctly, this error can occur.
  
  Solution:
  
  Check Class Definition: Verify the definition of class &2 to ensure that it correctly inherits from class &3. You can do this by checking the class attributes in the Class Builder (transaction SE24).
  Correct Inheritance: If the class is not inheriting from the expected parent class, modify the class definition to ensure it does inherit from class &3.
  Review Typographical Errors: Double-check the names of the classes involved to ensure there are no typos or incorrect references.
  Update Code: If the class hierarchy has changed, you may need to update the code that references class &2 to ensure it aligns with the new hierarchy.
  Check Interfaces: If you are working with interfaces, ensure that the class implements all required methods and inherits from the correct base class.
  
  Related Information:
  
  Transaction SE24: Use this transaction to view and modify class definitions in SAP.
  ABAP Documentation: Refer to the ABAP documentation for more information on class inheritance and object-oriented programming principles in SAP.
  Debugging: If you are unsure where the error is occurring, consider using the debugger to trace the execution and identify where the class is being instantiated or called.
  
  By following these steps, you should be able to resolve the FOX0088 error and ensure that your class definitions are correctly set up in the SAP system.