How To Fix /SCTM/EXCEPT003 - Program &1: object &2 is used as the instance of another class

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCTM/EXCEPT -

• Message number: 003

• Message text: Program &1: object &2 is used as the instance of another class

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 /SCTM/EXCEPT003 - Program &1: object &2 is used as the instance of another class ?

  The SAP error message /SCTM/EXCEPT003 Program &1: object &2 is used as the instance of another class typically indicates that there is an issue with object-oriented programming in ABAP, specifically related to the use of class instances. This error occurs when an object is being used in a context where it is expected to be an instance of a different class than the one it actually is.
  Cause:
  
  Incorrect Object Type: The object being referenced is not of the expected class type. This can happen if the object was instantiated from a different class or if there is a mismatch in the class hierarchy.
  Inheritance Issues: If the object is expected to be of a subclass but is actually an instance of a superclass or another unrelated class, this error can occur.
  Type Casting Errors: If there is an attempt to cast an object to a different class type that it does not belong to, this will lead to this error.
  
  Solution:
  
  Check Object Instantiation: Verify that the object is instantiated correctly from the expected class. Ensure that the constructor of the class is being called properly.
  Review Class Hierarchy: Check the inheritance structure of the classes involved. Make sure that the object being used is indeed a valid instance of the class or its subclass.
  Debugging: Use the ABAP debugger to inspect the object at runtime. Check the type of the object and ensure it matches the expected class.
  Type Casting: If you are using type casting, ensure that the object can be safely cast to the desired class. Use the CAST operator carefully and check the class type before casting.
  Code Review: Review the code where the object is being used. Look for any logical errors that might lead to the wrong object type being passed around.
  
  Related Information:
  
  ABAP Object-Oriented Programming: Understanding the principles of object-oriented programming in ABAP can help in diagnosing and fixing such issues.
  SAP Notes and Documentation: Check SAP Notes for any known issues or patches related to the specific classes or methods you are using.
  Community Forums: SAP Community and other forums can be helpful to see if others have encountered similar issues and how they resolved them.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.