Process Invoices & Emails with Gmail, AI Analysis & Telegram Alerts

This n8n workflow streamlines administrative tasks for manufacturing companies by monitoring Gmail for incoming emails, particularly invoices, purchase orders, and engineering updates. It uses AI to classify emails, detect attachments like PDFs, send context-aware auto-replies, and extract structured data such as amounts, dates, vendors, and line items from documents.

Key benefits include massive time savings on manual email triage and data entry, reduced errors in accounting, instant team notifications via Telegram for urgent payments or issues, and seamless integration with tools like Google Sheets for logging. It handles payment follow-ups automatically, ensuring nothing falls through the cracks while maintaining a professional communication flow.

Ideal use cases: Manufacturing firms managing supplier invoices, engineering teams tracking PO approvals, or any business with high email volume needing AI-powered document automation. Pre-requisites include Gmail OAuth, Telegram bot token, and optional OpenRouter API for AI. Setup involves importing the JSON, configuring credentials, customizing prompts, and testing with sample emails.

Post-extraction, data can route to accounting systems, trigger approvals, or generate reports, making it scalable for growing operations.