How To Fix PPER3E_CLASS007 - Class &1/&2 is not a subclass of &3

SAP Error Message - Details

• Message type: E = Error

• Message class: PPER3E_CLASS - Message Class for BAdI Class CL_PPER3E_CLASS

• Message number: 007

• Message text: Class &1/&2 is not a subclass of &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 PPER3E_CLASS007 - Class &1/&2 is not a subclass of &3 ?

  The SAP error message PPER3E_CLASS007 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 (denoted as &1/&2) is not a subclass of the expected superclass (denoted as &3). This can occur in various scenarios, such as when you are trying to instantiate a class, call a method, or use polymorphism.
  Cause
  The error can be caused by several factors:
  
  Incorrect Class Definition: The class you are trying to use is not defined as a subclass of the expected superclass.
  Typographical Errors: There may be a typo in the class name or the superclass name.
  Class Visibility: The class might not be visible in the context where you are trying to use it (e.g., it might be private or protected).
  Changes in Class Hierarchy: If the class hierarchy has been modified (e.g., a class was removed or its inheritance changed), it can lead to this error.
  Incorrect Interface Implementation: If the class is expected to implement an interface that it does not, this error can also occur.
  
  Solution
  To resolve the error, you can take the following steps:
  
  
  Check Class Definitions: Verify that the class you are trying to use is indeed a subclass of the expected superclass. You can do this by checking the class definition in the ABAP Workbench (SE80 or SE24).
  
  
  Correct Typographical Errors: Ensure that there are no typos in the class names. Double-check the names of both the class and the superclass.
  
  
  Review Class Visibility: Make sure that the class is accessible in the context where you are trying to use it. If it is a private or protected class, consider changing its visibility or using it in the appropriate context.
  
  
  Check Inheritance: If the class hierarchy has changed, you may need to update your code to reflect the new structure. Ensure that the class is correctly inheriting from the superclass.
  
  
  Interface Implementation: If the class is supposed to implement an interface, ensure that it correctly implements all the methods defined in that interface.
  
  
  Recompile Classes: Sometimes, recompiling the classes involved can help resolve issues related to outdated references.
  
  
  Related Information
  
  Transaction Codes: You can use transaction codes SE80 (Object Navigator) or SE24 (Class Builder) to inspect and modify class definitions.
  Documentation: Refer to the SAP Help Portal or the ABAP documentation for more information on class inheritance and object-oriented programming in ABAP.
  Debugging: If the error occurs during runtime, consider using the ABAP debugger to trace the execution and identify where the error is triggered.
  
  By following these steps, you should be able to identify and resolve the issue causing the PPER3E_CLASS007 error in your SAP environment.