How To Fix OO193 - Class &1 is not an exception class

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 193

• Message text: Class &1 is not an exception class

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message OO193 - Class &1 is not an exception class ?

  The SAP error message OO193 indicates that the specified class (denoted as &1 in the error message) is not recognized as an exception class. This typically occurs in the context of ABAP programming when you are trying to raise an exception using a class that does not inherit from the standard exception class CX_ROOT or any of its subclasses.
  Cause:
  
  Incorrect Class Definition: The class you are trying to use as an exception does not extend from CX_ROOT or any of its subclasses.
  Typographical Error: There may be a typo in the class name or the class may not exist in the system.
  Visibility Issues: The class might not be visible in the current context due to scope or package restrictions.
  
  Solution:
  
  
  Check Class Definition: Ensure that the class you are trying to use as an exception is defined correctly and inherits from CX_ROOT or a subclass of it. You can do this by checking the class definition in the ABAP Workbench (transaction SE24).
  Example:
  CLASS my_exception DEFINITION INHERITING FROM cx_root.
  
  
  Correct Class Name: Verify that you are using the correct class name in your code. Check for any typos or incorrect references.
  
  
  Create Exception Class: If the class does not exist or is not an exception class, you may need to create a new exception class that extends from CX_ROOT.
  Example:
  CLASS my_custom_exception DEFINITION
    INHERITING FROM cx_root
    FINAL
    CREATE PUBLIC.
  
  
  Check Visibility: Ensure that the class is accessible in the context where you are trying to use it. If it is in a different package, you may need to adjust the visibility settings.
  
  
  Use Standard Exceptions: If applicable, consider using standard exception classes provided by SAP, which are already defined and tested.
  
  
  Related Information:
  
  ABAP Exception Handling: Familiarize yourself with the ABAP exception handling mechanism, which includes the use of TRY, CATCH, and RAISE statements.
  Documentation: Refer to the SAP Help Portal or ABAP documentation for more details on creating and using exception classes.
  Debugging: If you continue to face issues, use the ABAP debugger to trace the execution and identify where the error is occurring.
  
  By following these steps, you should be able to resolve the OO193 error and properly implement exception handling in your ABAP code.