This automation doesn't nag every day — it only sends a reminder on the specific day set by a proposal's own "Days Before Due Date for Email Reminders" field (defaulting to 5 days before the due date, or a similar countdown from any extended net-terms due date). On that matching day, for each accepted or partially-paid proposal, it recalculates the outstanding balance and — if anything is still owed — emails the customer, emails your store's admin address, and notifies the event team. If the balance turns out to already be fully covered, it quietly marks the proposal fully paid instead of sending a reminder.