Mastering SAP ABAP

Raising

Classic exceptions should not be considered the exceptions originating from the system core. They are rather a short explanation, or the reason for the premature termination of the method or a function call. Such termination can be the result of preventive steps to avoid system failure, but also—and probably more likely—it is a simple message stipulating that for some reason, the code logic deviates from the designed flow and the valid results cannot be provided.

Due to their logic-specific nature, classic exceptions need to be raised manually in places where they are actually needed. Regardless of whether you're defining a new function module or new class method, there are two ways of raising a classic exception—the first is with ...