EXIT statement is a terminating flow control verb.
EXIT comes is a few flavours:
EXITis a common end point for a series of procedures.
EXIT SECTIONprovides a means of exiting a structured procedure without executing any of the subsequent statements.
EXIT PROGRAMmarks the logical end of a module of code.
EXIT PERFORMbreaks out of a inline perform loop.
EXIT PERFORM CYCLEcauses an inline perform loop to begin the next iteration.