Receipt Notification

 Hi,

 We want to notify the AP Department (say AP manager role) on the spot automatically once shipment receiving information has been entered in the PeopleSoft Purchasing. 

We have notify button on the Create Receipt page but this is manual. The Receiver has to click notify button then put email id and notify.

We would like to send the notification automatically once Receipt is created.  

Need help If anybody have automated such type of notification or events. I am not clear here. Do i need to create an event ? if yes then how we create events and how do we trigger the event.