The notification kind, returned by calling
kind on the notification object, reveals what triggered the webhook. The
$webhookNotification->kind for Braintree Auth webhooks will be one of the following:
The following table describes the conditions that trigger each kind of webhook.
A connected merchant's underwriting status has changed or they have submitted an application.
A connected merchant's PayPal account has been successfully linked or unlinked to their Braintree gateway.
See the Braintree Auth webhooks guide for additional attributes specific to each webhook kind.