How To Fix OL689 - Redefined component & is not modeled in supertype

SAP Error Message - Details

• Message type: E = Error

• Message class: OL - Workflow object types: Run-time system

• Message number: 689

• Message text: Redefined component & is not modeled in supertype

What causes this issue?

A redefined component (attribute, method, event) should be changed to
status 'modeled'. It is then no longer visible at runtime.
However, since the component in the supertype does not have the status
'modeled' and is therefore visible at runtime, the inheritance
principle is violated, because the subtype no longer has all the same
properties as the supertype.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OL689 - Redefined component & is not modeled in supertype ?

  The SAP error message OL689, which states "Redefined component & is not modeled in supertype," typically occurs in the context of Object-Oriented Programming within SAP, particularly when dealing with Business Object (BO) definitions and inheritance in the ABAP Dictionary.
  Cause:
  This error arises when you have a subclass (subtype) that redefines a component (attribute) of a superclass (supertype), but the component is not defined in the supertype. In other words, the subclass is trying to override or redefine a component that does not exist in the parent class. This can happen due to:
  
  Incorrect Inheritance Structure: The superclass does not have the component that the subclass is trying to redefine.
  Modeling Errors: There may be a mistake in the way the object types are modeled, leading to inconsistencies in the inheritance hierarchy.
  Changes in Object Definitions: If the superclass was modified after the subclass was created, it might lead to this error if the subclass relies on components that were removed or renamed.
  
  Solution:
  To resolve the OL689 error, you can take the following steps:
  
  
  Check the Supertype Definition: Verify that the component you are trying to redefine in the subclass is indeed defined in the supertype. If it is not, you need to add it to the supertype.
  
  
  Modify the Subtype: If the component should not be redefined, you can remove the redefinition from the subclass. Ensure that the subclass uses the component as defined in the supertype.
  
  
  Consistency Check: Perform a consistency check on the object types involved. This can help identify any discrepancies in the inheritance structure.
  
  
  Rebuild the Object Types: If necessary, you may need to regenerate or rebuild the object types to ensure that all definitions are up to date and consistent.
  
  
  Documentation Review: Review the documentation for the object types to ensure that the intended design is correctly implemented.
  
  
  Related Information:
  
  Object-Oriented Programming in ABAP: Understanding the principles of inheritance, polymorphism, and encapsulation in ABAP can help prevent such errors.
  SAP Notes and Documentation: Check SAP Notes for any known issues or additional guidance related to this error message.
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to inspect and modify object definitions.
  
  By following these steps, you should be able to identify the root cause of the OL689 error and implement the necessary corrections to resolve it.