Creating an Order Directly from a Notification 
The screen Create/Change Notification: <Notification Type> appears.
The screen Create Order appears.
The order is released using Order ® Save.
The notification number is entered automatically in the object list for the order.
Result
The system saves the notification, order and object list. The notification is assigned the statuses Order assigned and Notification in process. The number of the assigned order appears in the field Order in the notification header.

If you save whilst in the notification, the order and object list are also saved and vice versa.
As soon as the notification and order have been assigned to one another, you can process the order from the notification and vice versa.