Lead Capture & Auto Follow-Up

End-to-end lead nurturing system — from form submission to AI-personalized follow-up emails, fully automated with n8n, Groq AI, and Gmail.

n8n Groq LLM Google Sheets Gmail Webhook

Key Features

Complete lead nurturing automation — from capture to conversion

🔗

Webhook Trigger

POST endpoint receives form submissions instantly. Compatible with any form builder, landing page, or frontend framework.

🤖

AI-Powered Emails

Groq's Llama 3.1 generates personalized welcome emails using lead's name, company, and message — under 150 words, warm and professional.

📊

Lead Tracking

Every lead saved to Google Sheets with auto-timestamp. Track volume, sources, and conversion over time.

📧

4-Email Sequence

Strategically timed follow-ups: Welcome → Check-in → Value prop → Final reminder. Each email has a different angle.

⏳

Smart Delays

n8n Wait nodes handle timing: 1 day, 2 days, 3 days between emails. Leads aren't overwhelmed or forgotten.

🔔

Owner Notifications

Instant email alert to business owner when a new lead arrives. Know immediately so you can respond personally.

Tech Stack

Four integrated services powering the entire automation

n8n

Workflow orchestration, scheduling, and execution engine

Groq AI

Llama 3.1 — fast, free AI email generation

Google Sheets

Lead database with auto-timestamped entries

Gmail OAuth2

Secure email delivery for all follow-up messages

Webhook

POST endpoint for form submissions

Wait Nodes

Stateful delays between follow-up emails

HTML Emails

Formatted messages with merge fields and links

Calendly

Booking link included in follow-up emails

# Trigger the workflow
curl -X POST /webhook/lead-capture \
  -H "Content-Type: application/json" \
  -d '{
    "name": "John Smith",
    "email": "john@example.com",
    "company": "Acme Corp",
    "message": "Interested in automation"
  }'

# Response: 200 OK
# → Saves to Sheets
# → AI drafts welcome email
# → Sends via Gmail
# → Notifies owner
# → Schedules follow-ups
                        

How It Works

Four-step process from lead capture to conversion

Capture

Lead submits form. Webhook receives data and saves to Google Sheets with timestamp.

Welcome

Groq AI generates personalized email. Sent instantly via Gmail. Owner notified.

Nurture

3 follow-up emails over 6 days. Different angles: check-in, value prop, final reminder.

Convert

Lead books a call via Calendly link. Sequence complete. Deal moves forward.

Email Sequence

Four strategically timed emails that nurture without being pushy

Immediate

0 seconds

Welcome Email

AI-generated, personalized with lead's name, company, and message. Warm, professional tone under 150 words.

AI-Powered

Day 1

After 24 hours

Follow-Up #1: "Just checking in"

Gentle nudge. Asks if they have questions. Offers to hop on a call or continue via email.

24h Delay

Day 3

After 48 more hours

Follow-Up #2: "Still interested?"

Value proposition — lists key services (automation, CRM, AI). Includes Calendly booking link.

48h Delay

Day 6

After 72 more hours

Final Reminder: "Let's connect!"

Last touchpoint. No pressure — leaves the door open. Links to Calendly for easy booking.

Final Email