PayPal™ offers a service called Instant Payment Notification, or IPN, which can electronically notify a payment recipient with the status
of a transaction.
This service requires the recipient to have a "listener" page to which PayPal™ can send these notifications.
TroopWebHost has developed a listener page that will use these notifications to update your database.
You need to tell PayPal™ where to find this page.
While you are logged on to the PayPal™ web site, click on the Profile icon in the upper right corner of the page, as shown below.
This will expose the Business Profile menu.
Click on Profile and settings.
Then on the menu on the left side of the page, click on My Selling Tools. A page will then display which has a row labeled Instant Payment Notification.
Click the Update link on that row to proceed.
This will display the page shown at right.
Click the Choose IPN Settings button to continue.
You should then see the page shown below.
Copy the following text into the Notification URL field: https://www.TroopWebHost.org/PaypalProcessStatus.aspx
Click on the radio button labeled Receive IPN messages (Enabled)
Then click the Save button to save your changes.
You are done with the PayPal™ part of this process.