PayPal can send many different status updates, but Payage only handles changes from Pending to Success, and refunds. These changes are propagated to the originating application.
Partial refunds do not change the Payage transaction status and are not propagated to the originating application, although the partial refund is added to the History section of the payment. If multiple partial refunds result in a transaction becoming fully refunded, the payment status is changed to refunded and the originating application is notified of the update.