PRO SITES - Payment successful hook

Hi guys!

Is there a hook I can use in my functions.php that fires when PRO SITES registers a payment successful event?

As I have just learned PRO SITES doesn't support a list of all current orders I would like to connect in to ZAPIER Webhook to fire every time a payment is processed.

Than I could pass to to a Google Doc to have a nice list of all payments and to connect it to my invoicing software.