Components of a Routing Notification
A routing notification contains:

Sender, receiver, and message type.

A flag that indicates whether the
Confirm event should be forwarded to the receiver.

A flag that indicates if incoming IDocs should be tracked to later ALE monitoring from the calling system (Takes effect only if the request was received via a RFC listener).

How to route the message; that is, the transport.

Additional parameters based on the selected transport.