Send Campaign Leads to HubSpot with Webhooks and API

The short answer

Yes, Smart Growth AI works with HubSpot. Leads from your voice, WhatsApp, RCS, SMS and Meta ad campaigns can be pushed into HubSpot as contacts, with the details your team needs to follow up properly.

To be upfront about it: this is a connection built on webhooks, API and our custom form API. We do not have an app listed in the HubSpot marketplace, and we are not a HubSpot partner. We use the API access that HubSpot gives account owners, and set it up with your team.

Why teams want this

HubSpot is often owned by the marketing team, while campaigns on WhatsApp and voice are run by sales or admissions. When the two do not talk, you end up with leads in three places and no one sure which ones were contacted. Sending everything into HubSpot gives one record per person, with a clear trail of which campaign reached them and how they responded.

What we can send

• Contact details: name, mobile, email if collected, city
• Interest signals: voice call listening duration, key pressed, WhatsApp or RCS button taps
• Form answers: course, product, budget, preferred time from WhatsApp forms, website forms and Meta lead ads
• Source: which campaign and channel brought the lead in
• Opt-outs: so HubSpot reflects people who asked not to be contacted

How it works

1. Agree the properties

We look at your HubSpot contact properties with you and decide where each piece of data goes. If you need new custom properties, your HubSpot admin creates them first.

2. Set up the connection

With access granted from your HubSpot account, we configure the webhook or API calls that create or update contacts. You can revoke access whenever you want.

3. Test, then switch on

We send sample leads from each source, check they appear correctly, and then turn on live campaigns.

HubSpot plus the Smart Growth AI Campaign

Our Smart Growth AI Campaign starts with a short voice call to your full list and uses listening time to sort people. With HubSpot connected, you can store that interest level as a property. Your team can then build lists such as "pressed 1 this week" or "listened past 25 seconds, no reply yet" and run their own follow-up from inside HubSpot, while Smart Growth AI handles WhatsApp, RCS and SMS delivery.

The AI campaign report still shows cost per lead and which voice clip or template performed better, so marketing and sales see the same numbers.

Before you start

• Decide how duplicates should be handled: match on phone number, email, or both.
• Check which team member will own new contacts, or let your HubSpot rules decide.
• Keep a simple Google Sheet running too, if some staff do not have HubSpot seats. Our Google Sheets integration is free.

Who this suits

This setup works well for colleges and overseas education consultants with a marketing team on HubSpot, for insurance and loan businesses tracking deals there, and for D2C brands who already run email from HubSpot and want WhatsApp and RCS alongside it. If your team is small and does not use a CRM yet, a sheet may be the simpler start.

A note on data and consent

When leads move between tools, consent should move with them. We can pass opt-out status into HubSpot so your email and WhatsApp lists stay consistent.

Want to see how your HubSpot properties would map? Book a demo and bring your HubSpot admin along.