This automation finds proposals that are accepted or partially paid whose due date has passed and marks each one past due. If the proposal has auto-charge turned on, it immediately attempts to charge the customer's saved payment method for the remaining balance. If auto-charge isn't turned on at all, it instead emails the customer, emails your store's admin address, and notifies everyone on the event team who has notifications turned on for this proposal, through whichever channels (email, text, in-app) they've each chosen.