Whenever somebody removes a subscription from a fact sheet, the admin team wants to be informed so they can double-check. So if we receive a SubscriptionDeletedEvent, we send an e-mail to the mail address that is configured in the global configuration (Company level). Note that we don't send an e-mail if the acting user's e-mail address is listed in the exception list.
def handle(self, event, fact_sheet):
Called automatically whenever a FactSheetCreated or FactSheetUpdated event comes in via webhook.