Overdue Invoice Follow-Up

Runs a weekly collection campaign for unpaid invoices. Every Monday at 9am Eastern it reads your accounts receivable sheet, finds invoices past their due date that are not marked Paid, and sends each client a personalized collection email whose tone escalates with how overdue the invoice is - from a polite reminder in the first week to a formal notice at 30+ days. Mark an invoice Paid to stop its reminders. Up to 50 invoices per run; a manual run sends the reminders again. Save the flow once after importing it to arm the schedule. Add an OpenAI API key in Settings before activating.