Auto-Respond to Gmail Inquiries with OpenAI & Google Sheets

AI-powered Gmail auto-responder classifies inquiries using GPT-4, pulls FAQ context from Google Sheets, generates professional replies, sends them automatically, and logs interactions for compliance.

n8n
Auto-Respond to Gmail Inquiries with OpenAI & Google Sheets

This workflow automates customer support by monitoring your Gmail inbox for new emails in real time. It uses OpenAI's GPT-4 to classify incoming messages as 'Inquiry' or 'Not Inquiry', ensuring only relevant emails like pricing or refund questions trigger responses. Non-inquiries such as newsletters are ignored to avoid unnecessary replies.

For classified inquiries, it retrieves context from a Google Sheets FAQ database to ensure responses are accurate and based on approved knowledge. An AI agent then generates a context-aware, professional reply. The workflow sends this response directly to the sender via Gmail and logs the full interaction—including original email, AI response, timestamp, and sender details—back to Google Sheets for easy tracking and analysis.

Ideal for customer support teams, SaaS companies, and e-commerce stores, it reduces manual response time, ensures consistency, provides 24/7 coverage, and maintains compliance through full audit trails. Example: A pricing inquiry triggers a tailored response citing your exact FAQ, saving hours weekly while delighting customers with instant, helpful replies.

$19.99
Last updated October 3, 2026
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How to import this workflow into n8n

  1. 1Purchase or download the workflow to get the n8n workflow JSON file.
  2. 2In your n8n instance, open Workflows and choose "Import from File" (or paste the JSON with Ctrl+V on the canvas).
  3. 3Open each node marked with a credential warning and connect your own accounts and API keys.
  4. 4Run the workflow once manually to verify the data flow, then toggle it to Active.

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