How To Fix OA036 - Object & expected but & returned

SAP Error Message - Details

• Message type: E = Error

• Message class: OA - SAP ArchiveLink: Messages for SAP ArchiveLink

• Message number: 036

• Message text: Object & expected but & returned

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message OA036 - Object & expected but & returned ?

  The SAP error message OA036 ("Object & expected but & returned") typically occurs in the context of object-oriented programming within SAP, particularly when dealing with method calls or object instantiation. This error indicates a mismatch between the expected object type and the actual object type that was returned.
  Cause:
  
  
  Type Mismatch: The most common cause of this error is that a method or function is expected to return a specific type of object, but it returns a different type instead. This can happen if:
  
  The method is incorrectly implemented.
  The object being returned is not of the expected class or interface.
  There is a misconfiguration in the class hierarchy or inheritance.
  
  
  
  Incorrect Casting: If there is an attempt to cast an object to a type that it does not belong to, this error can also occur.
  
  
  Changes in Class Definitions: If there have been recent changes to the class definitions or interfaces, and the code has not been updated accordingly, this can lead to such errors.
  
  
  Solution:
  
  
  Check Method Implementation: Review the method that is supposed to return the object. Ensure that it is correctly returning an instance of the expected class or interface.
  
  
  Verify Object Types: Use debugging tools to inspect the type of the object being returned. You can use the TYPE statement or GET TYPE to check the actual type of the object.
  
  
  Review Class Hierarchy: Ensure that the class from which the object is being returned is correctly defined and that it implements the expected interfaces.
  
  
  Update Code: If there have been changes to the class definitions, update the calling code to reflect these changes. Ensure that any casting is valid and that the object being returned is of the expected type.
  
  
  Check for Null Values: Sometimes, the method might return a null value or an uninitialized object. Ensure that the object is properly instantiated before it is returned.
  
  
  Consult Documentation: If you are using standard SAP classes or methods, consult the SAP documentation to ensure that you are using them correctly.
  
  
  Related Information:
  
  Debugging: Use the ABAP debugger to step through the code and identify where the type mismatch occurs.
  SAP Notes: Check SAP Notes for any known issues related to the specific classes or methods you are using.
  Community Forums: Consider searching or posting on SAP community forums for additional insights or similar experiences from other developers.
  
  By following these steps, you should be able to identify the root cause of the OA036 error and implement a suitable solution.