How to Track Calendly Bookings as Meta Ads Conversions

You run Meta ads to get people on a call. They click, land on your page, and book through Calendly. Then Meta loses track of them.

The booking happens inside the Calendly widget, and iOS privacy rules and ad blockers hide a lot of what's left. So Meta ends up optimizing for clicks and page views instead of real booked calls.

The fix is to send every booking to Meta from the server, through the Conversions API. This guide shows you how to do it with SourceLoop in about 20 minutes, no developer needed.

What you need

• A SourceLoop account with Admin or Owner role.
• A Calendly account. Any plan works, including Free.
• Admin access to your Meta Business Manager.
• A Meta Pixel (or Dataset) linked to your ad account.

Step 1: Install the SourceLoop tracking script

In SourceLoop, go to Setup, then Tracking code. Copy the script and paste it into the head of every page, including the page with your Calendly embed or link.

This script saves the Meta click ID and cookies from each ad click. That's what lets Meta match the booking back to the right ad later.

Step 2: Get your Calendly API token

SourceLoop needs this token to fetch the name and email of each person who books.

Log in to Calendly. Click Integrations and apps in the left sidebar and search for API & Webhooks.

Click Generate New Token and copy it. Keep this tab open.

Step 3: Connect Calendly to SourceLoop

In SourceLoop, go to Setup, then Meeting, and click Calendly.

Paste your token into the API key field and click Save.

From now on, every Calendly booking shows up in SourceLoop with its source, campaign, and full journey.

Step 4: Connect Meta Ads

1. In SourceLoop, go to Setup, then Ad Platforms.
2. Click Connect on the Meta Ads card.
3. Sign in to Facebook with a user who is Admin on your Business Manager.
4. Choose the Business and ad accounts SourceLoop can access, then click Continue.
5. Back in SourceLoop, pick your ad account and click Connect this account.

Step 5: Add your Pixel ID and access token

SourceLoop needs two things from Meta to send conversions.

Find your Pixel ID

Open Events Manager in Meta Business Suite, pick your Pixel, and copy the 15 to 16 digit ID from the Overview tab.

Create a System User token

Normal tokens expire every 60 days. System User tokens don't, so use one.

1. In Business Settings, go to Users, then System Users.
2. Click Add and name it something like SourceLoop CAPI.
3. Click Add Assets and give it Manage access to your ad account and your Pixel.
4. Click Generate New Token, tick ads_management, and set expiry to Never.
5. Copy the token. Meta only shows it once.

Now go to Setup, then Ad Platforms, then Meta Ads in SourceLoop. In the CAPI configuration section, paste the Pixel ID and the token, then click Save. The status changes to Active.

Step 6: Send Calendly bookings as a Schedule event

In the same Meta drawer, scroll to Conversion sync and click Add conversion mapping. Fill it in like this:

• Trigger event type: Conversion created
• Trigger event name filter: calendly_booking so only bookings are sent
• Attribution model: Last touch
• Meta event name: Schedule
• Include value (optional): pick a fixed value, like what a booked call is worth to you
• Dedup window: leave it at 1440 minutes

Click Save. SourceLoop now sends new bookings to Meta every 2 minutes.

Schedule or Lead? Use Schedule if you want Meta to find more people who book calls. If you already optimize on Lead and want to keep it, choose Lead instead.

Step 7: Test it

1. In Events Manager, open the Test events tab and copy the test code.
2. Paste it into the Test event code field in SourceLoop's Meta drawer.
3. Open your booking page in incognito with ?utm_source=test added to the URL, and book a meeting with a real email.
4. Watch the Schedule event appear in Test events. Check that match quality looks good.
5. Remove the test code so real events go live.

Your test booking also shows up in SourceLoop's Contacts Hub with the full journey.

And the dashboard shows which campaigns book the most calls.

Start your free 7-day SourceLoop trial and let Meta learn from real booked calls. No card needed.