How To Fix OO085 - A &1 &2 has already been inherited from &3

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 085

• Message text: A &1 &2 has already been inherited from &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.

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 OO085 - A &1 &2 has already been inherited from &3 ?

  The SAP error message OO085 indicates that there is an issue with inheritance in the Object-Oriented programming context within SAP, specifically related to classes and their relationships. The message typically means that a certain class (or object) is trying to inherit attributes or methods from another class that has already been inherited from a third class.
  Cause:
  
  Multiple Inheritance: The error often arises when a class is attempting to inherit from multiple classes that have a common ancestor. This can lead to ambiguity in the inheritance hierarchy.
  Redundant Inheritance: The class you are trying to define may already be inheriting from a class that has already inherited from the specified class, leading to a conflict.
  Incorrect Class Definition: There may be an issue with how the classes are defined in the system, such as circular references or incorrect parent-child relationships.
  
  Solution:
  
  Review Class Hierarchy: Check the inheritance structure of the classes involved. Ensure that the class you are trying to create or modify does not redundantly inherit from a class that it already inherits from.
  Modify Inheritance: If you find that the class is trying to inherit from a class that it already inherits from, you may need to adjust the class definition to remove the redundant inheritance.
  Use Interfaces: If you need to implement functionality from multiple sources, consider using interfaces instead of multiple inheritance, as interfaces can help avoid the complexities associated with multiple inheritance.
  Check for Circular References: Ensure that there are no circular references in your class hierarchy that could be causing the issue.
  
  Related Information:
  
  ABAP Objects: Understanding the principles of ABAP Objects and how inheritance works in SAP can help in resolving such issues.
  SAP Documentation: Refer to the official SAP documentation for more details on class definitions and inheritance rules.
  Debugging Tools: Use SAP's debugging tools to trace the class definitions and see where the inheritance is causing issues.
  
  If the problem persists after checking the above points, consider reaching out to your SAP support team or consulting with an SAP expert who can provide more tailored assistance based on your specific implementation.