Automate PDF Invoice Generation & Delivery with Gmail and Google Drive Storage

How it works Automatically generates professional PDF invoices from webhook data and delivers them via email while storing backups in Google Drive. Perfect for freelancers, small businesses, and service providers who need automated billing workflows.

Set up steps Configure environment variables for company information (name, address, email, phone). Set up your PDF generation API service account (PDFShift recommended). Configure SMTP email credentials for invoice delivery. Set up Google Drive OAuth2 for cloud storage. Deploy the workflow and test with sample invoice data.

Key features Smart invoice number generation if not provided Automatic tax calculations with configurable rates Professional HTML templates with company branding Parallel processing for email and storage Comprehensive error handling and validation Detailed success confirmation responses

Required environment variables COMPANY_NAME - Your business name COMPANY_ADDRESS - Business mailing address
COMPANY_EMAIL - Billing contact email COMPANY_PHONE - Business phone number PDF_API_URL - PDF generation service endpoint PDF_API_KEY - API authentication key GDRIVE_INVOICE_FOLDER_ID - Google Drive folder ID

API requirements PDF generation service (PDFShift, HTML/CSS to PDF API, or similar), SMTP email service for delivery, Google Drive API access for storage.

Input format { "customerName": "John Smith", "customerEmail": "john@example.com", "items": [ {"description": "Web Design", "quantity": 1, "price": 500} ], "dueDate": "2025-02-15" }