How to Automate Your WhatsApp Lead Follow-Ups with n8n (Free)

If your business gets leads from multiple places — your website, Instagram DMs, a lead form, a portal — and you're following up with each one manually, you're probably losing at least 30% of them.

Studies consistently show that leads contacted within 5 minutes are 9× more likely to convert than leads contacted after 30 minutes. Most Nigerian businesses are following up in hours. Some in days.

Here's how to fix that for free using n8n.

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What we're building

A workflow that:

1. Catches a new lead from any source (website form, Google Sheets, email, etc.)
2. Sends them a personalised WhatsApp message within 2 minutes
3. Logs the lead to a Google Sheet
4. Notifies you on WhatsApp so you can follow up personally if needed

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What you need

• An n8n account — free tier is fine at n8n.io. You can also self-host on a $5/month VPS.
• A WhatsApp Business account connected to the Meta API (free to set up, costs apply per message sent)
• Google Sheets (free)

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Step 1 — Set up your n8n trigger

Your trigger is what starts the workflow. Depending on where your leads come from, this might be:

• Webhook — if your website form posts to a URL when submitted
• Google Sheets trigger — if leads land in a spreadsheet first
• Email trigger — if leads come via email notifications from a portal
• HTTP Request — for pulling from a CRM or API

For most Nigerian businesses using a basic contact form, the Webhook trigger is easiest. n8n gives you a URL; you paste it into your form's "submit" action.

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Step 2 — Format the WhatsApp message

After the trigger, add an Edit Fields node to extract the data you need: name, phone number, what they're enquiring about.

Then build your message template. Something like:

Hi {{name}}, thanks for reaching out!

I'm Gift — I've received your enquiry about {{service}} and I'll get back to you within a few hours.

In the meantime, you can see some of my work here: https://websitetoscale.com/work

Talk soon!

The key is to make it feel personal, not automated. Use their name. Reference what they asked about if you can.

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Step 3 — Connect WhatsApp Business API

In n8n, add an HTTP Request node with:

• Method: POST
• URL: https://graph.facebook.com/v18.0/{PHONE_NUMBER_ID}/messages
• Authentication: Bearer token (your WhatsApp API token)
• Body: JSON with the recipient number and your message template

This is the only mildly technical part. Meta's documentation walks through it step by step.

Important: WhatsApp Business API requires pre-approved message templates for the first message to a new contact. Set up a simple "follow up" template during your Meta account setup.

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Step 4 — Log to Google Sheets

Add a Google Sheets node set to "Append Row." Map the fields:

Column	Value
Timestamp	{{$now}}
Name	{{name}}
Phone	{{phone}}
Enquiry	{{message}}
Status	New

Now every lead is tracked automatically and you have a CRM in a Google Sheet.

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Step 5 — Notify yourself

Add one more WhatsApp or Telegram node that sends you a notification:

🔔 New lead: {{name}} ({{phone}})
Enquiry: {{message}}

This way you still know every time a lead comes in — you're just not the one sending the first response anymore.

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What this actually changes

Before automation:

• Lead submits form at 2pm
• You see it at 5pm
• You reply at 6pm
• 4 hours later. Lead already called a competitor.

After automation:

• Lead submits form at 2pm
• They get a WhatsApp message at 2:02pm
• You get notified at 2:02pm
• Lead feels attended to. Competitor never got a chance.

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Want this set up for you?

I build these systems for small businesses. If you'd rather have it done properly than figure it out yourself, book a free call and let's talk through what makes sense for your specific setup.