With status reports you can receive an update on every status change your messages undergo. Our platform will HTTP GET a specific script on your server. A so-called event webhook.
Set up a Status Report webhook
Go to your Messaging Gateway app in your dashboard
Scroll down to "Status reports"
Select the checkbox to switch on Status Reports and input the URL to your callback script.
If you want to specify exactly how the callback URL should look like you can "Show advanced settings" and select each separate key/value pair.