How To Fix OO_SOURCE_BASED100 - Operation &1 is not supported.

SAP Error Message - Details

• Message type: E = Error

• Message class: OO_SOURCE_BASED - WB - Class Builder - Messages for the source-b. Class Editor

• Message number: 100

• Message text: Operation &1 is not supported.

What causes this issue?

The operation has not been implemented for the source-based Class
Builder, yet. Therefore, it is not supported.

System Response

The operation won't be excecuted.

How to fix this error?

Select the form-based Class Builder to perform this operation. You can
select the form-based Class Builder by disable the flag (source-based
Class Builder) in the Class Builder's settings (menu entry: Utilities ->
Settings -> Class Builder).

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OO_SOURCE_BASED100 - Operation &1 is not supported. ?

  The SAP error message "OO_SOURCE_BASED100 Operation &1 is not supported" typically occurs in the context of Object-Oriented programming within SAP, particularly when dealing with ABAP Objects. This error indicates that a specific operation (denoted by &1) is not supported for the object or class you are working with.
  Causes:
  
  Unsupported Operation: The operation you are trying to perform (e.g., method call, property access) is not defined for the class or object instance you are using.
  Incorrect Class Type: You may be trying to use a method or property that is not available in the class type of the object you are working with.
  Inheritance Issues: If you are working with subclasses, the method or property may not be implemented in the subclass or may be abstract in the superclass.
  Interface Implementation: If the class is supposed to implement an interface, it may not have implemented all the required methods.
  
  Solutions:
  
  Check Class Definition: Verify the class definition