How to Send Bookly Data to Customer.io

Written by Nasir Ahmed
PublishedAugust 2, 2026
Reading time3 min read

Customer.io is a marketing automation platform. Bookly manages an appointment is booked, but sending that data to external platforms needs an integration. AFI bridges that gap to Customer.io.

Why connect directly?

Cloud automation tools like Zapier charge per task and route your data through external servers. AFI processes everything on your WordPress site. No per-appointment fees, no external dependencies.

What you will need

  • A WordPress site with Bookly installed and configured.
  • A Customer.io account.
  • The Advanced Form Integration plugin (free from WordPress.org).

Connect Customer.io to AFI

  1. Log in to your Customer.io account.
  2. Go to Settings → API Credentials and copy your Site ID and API Key.
  3. In WordPress, go to AFI → Settings → Customer.io.
  4. Enter the Site ID and API Key, then click Save Changes.

Setting up the integration

1. Create a new integration

Go to AFI → Add New. Name it Bookly to Customer.io.

2. Pick your trigger

Select Bookly as the form provider. AFI fires when an appointment is booked, giving you access to customer name, email, phone, service name, staff member, appointment date, and time.

3. Select Customer.io as the destination

Choose Customer.io from the platform dropdown and pick Add Customer. This creates or updates a customer in Customer.io.

4. Map fields

Match each Customer.io field on the left to the corresponding Bookly field on the right. Common mappings include customer name, email, phone, service name, staff member, appointment date, and time. You can also use smart tags like {{_submission_date}}.

5. Add conditions if needed

Only want to send certain records? Set up a conditional rule based on any field value.

6. Save and test

Click Save Integration. Trigger a test event in Bookly. Check Customer.io to confirm the data arrived. If anything looks wrong, open AFI → Log to see the exact request and response.

Free vs Pro

The free version maps email, name, and standard attributes to Customer.io with unlimited records. Pro adds custom attributes and event tracking. No per-record fees on any plan.

Frequently asked questions

Which Bookly events trigger the integration?

AFI fires when an appointment is booked. This covers new submissions and relevant status changes.

Will adding this slow down my site?

No. AFI sends data to the destination after the event completes. Your site performance is not affected.

Can I send data to multiple platforms?

Yes. Create a separate integration for each destination, and every record flows to all of them simultaneously.

Get started

Install Advanced Form Integration free from WordPress.org and connect Bookly to Customer.io in minutes.

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