Automated Invoice Workflow with GPT-4 Reminders & Stripe

This workflow automates the full invoice lifecycle: triggered by new data in Google Sheets, it generates personalized PDF invoices using Google Docs templates and optional GPT-4 for detailed descriptions. It integrates with Stripe via HTTP requests to monitor payment status in real-time.

Intelligent logic via If nodes sends pre-due polite reminders and urgent post-due notifications only for unpaid invoices, using Gmail. Overdue invoices trigger Slack alerts to your team, ensuring cash flow visibility without manual checks.

Benefits include reduced manual billing effort, minimized overdue payments through smart reminders, and a real-time Google Sheets dashboard for invoice statuses (Sent, Overdue, Paid). Ideal for freelancers, agencies, or SMBs handling recurring billing, integrating seamlessly with Google Workspace, Stripe, and AI for scalable operations.

Use cases: Automate client invoicing for service businesses, track SaaS subscriptions, or manage B2B payments with multi-channel follow-ups, boosting efficiency and revenue collection.