Send AI lead follow-up SMS with GPT-4.1, Google Sheets, Twilio and Gmail
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 11 nodes and runs when an HTTP POST request hits its webhook URL. Along the way it connects Google Sheets, OpenAI, Twilio and Gmail.
How it runs
Trigger: When an HTTP POST request hits its webhook URL.
- Respond to Webhook: sends the response back to the webhook caller
- Google Sheets: append
- OpenAI: uses OpenAI
- Twilio: uses Twilio
- Wait: waits 2 seconds
- Google Sheets: uses Google Sheets
- If: checks a condition and branches into true / false
- Send a message (Gmail): uses Gmail
- OpenAI: uses OpenAI
- Twilio: uses Twilio
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (8)
- Webhook
n8n-nodes-base.webhook - Respond to Webhook
n8n-nodes-base.respondToWebhook - Google Sheets
n8n-nodes-base.googleSheets - OpenAI
@n8n/n8n-nodes-langchain.openAi - Twilio
n8n-nodes-base.twilio - Wait
n8n-nodes-base.wait - If
n8n-nodes-base.if - Gmail
n8n-nodes-base.gmail
From the author
How it works - Triggered when a lead submits your website contact form via webhook - Logs the lead's Name, Phone, Email, and Interest to Google Sheets - GPT-4.1 generates a personalised SMS and sends it instantly via Twilio - Waits 2 hours, then checks if the…