Extract Purchase Orders from Gmail using Gemini AI and Save to Google Sheets

🚀 AI-Powered Email to Purchase Order Workflow

Automatically scan your inbox for new purchase order requests, extract order details using Gemini AI, and log them into Google Sheets — all without manual effort.

✨ Core Capabilities
⏱ Runs every minute to check unread emails
📧 Filters emails by subject
🤖 Uses Gemini AI to summarize email content & extract structured order details
📅 Formats dates into ISO calendar weeks
📊 Adds product data from Google Sheets to complete order info
✅ Appends final purchase order records into a Google Sheet (without replacing previous ones)

🛠 Setup Essentials
📩 Gmail account for fetching unread emails
🔑 Google Gemini (PaLM) API credentials
📒 Google Sheet with predefined purchase order headers

📖 Activation Guide
⚙️ Configure Gmail & Google Sheets credentials in n8n
🎯 Adjust the subject filter to match your email rules
🔌 Connect Gemini AI with your API credentials
📑 Create a Google Sheet with the required headers
▶️ Activate the workflow and let it run in the background

🎨 Customizing the Workflow
🔍 Email Filters → Change keywords in the filter node to match your purchase order email subjects
🏷 Order Fields → Modify Set and Append to Google Sheet nodes if your schema differs
✍️ AI Instructions → Adjust the AI Agent’s prompt to fit your company’s email style or product details
⏲ Frequency → Update the Cron node if you want to scan emails less often
📂 Target Google Sheet → Point to a different sheet or tab depending on your department or customer