For a cache structure, the event exit and the complete exit are required.

For a list structure, the event exit and the complete exit are required. The list transition exit is optional.

For a serialized list structure, the event exit, complete exit, and notify exit are required. The list transition exit is optional.

For a lock structure, the event exit, complete exit, notify exit, and contention exit are required.

See Coding Exit Routines for Connection Services for information about writing exit routines.