How To Fix 28452 - Object variable &1 is instance &2

SAP Error Message - Details

• Message type: E = Error

• Message class: 28 - Configuration

• Message number: 452

• Message text: Object variable &1 is instance &2

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 28452 - Object variable &1 is instance &2 ?

  The SAP error message 28452, "Object variable &1 is instance &2," typically occurs in the context of ABAP programming or when dealing with object-oriented programming in SAP. This error indicates that there is an issue with the instantiation or usage of an object variable in your ABAP code.
  Cause:
  
  Incorrect Object Reference: The object variable (&1) is not properly instantiated or is being referenced incorrectly. This can happen if the object is not created before it is used.
  Type Mismatch: The object variable may be of a different type than what is expected. For example, if you are trying to assign an object of one class to a variable of another class that is not compatible.
  Scope Issues: The object variable may be out of scope or has been deleted or set to null before it is accessed.
  
  Solution:
  
  
  Check Object Instantiation: Ensure that the object variable is properly instantiated using the CREATE OBJECT statement before it is used. For example:
  DATA: lo_object TYPE REF TO your_class.
  CREATE OBJECT lo_object.
  
  
  Verify Object Type: Make sure that the object variable is of the correct type and that you are not trying to assign an object of one class to a variable of an incompatible class.
  
  
  Debugging: Use the ABAP debugger to step through the code and check the state of the object variable at runtime. This can help identify if the object is being set to null or if it is not being instantiated correctly.
  
  
  Check Scope: Ensure that the object variable is within the correct scope and has not been deleted or gone out of scope before it is accessed.
  
  
  Review Class Definitions: If you are using inheritance, ensure that the object being referenced is indeed an instance of the expected class or its subclass.
  
  
  Related Information:
  
  ABAP Documentation: Refer to the official SAP documentation for more details on object-oriented programming in ABAP.
  SAP Community: Check forums and community discussions for similar issues and solutions shared by other developers.
  SAP Notes: Look for any relevant SAP Notes that might address specific issues related to this error message.
  
  By following these steps, you should be able to identify and resolve the issue causing the error message 28452 in your SAP environment.