How to Get Notified on Slack When an Event is Booked?

Stay on top of your schedule by getting instant alerts where you already work. By connecting Cal ID to Slack via **Zapier, Pabbly, Make or ViaSocket ** you can stop checking your email and get notified the moment a booking happens.

Why use this?

• Instant Alerts: Know immediately when a new client books you.
• Team Sync: Send notifications to a shared channel so your team stays updated.
• All-in-One Place: Track new bookings, reschedules, and cancellations without leaving Slack.

1. Log in to your Cal ID account.
2. Go to the App Store in the sidebar.
3. Find the Zapier app and click Install.
4. Generate the API and Copy it.

Log in to your Zapier account and follow these 3 mini-steps:

A. The Trigger (When this happens...)

• App: Choose Cal ID.
• Event: Select "Booking Created".
• Account: Connect your Cal ID account (you may be asked for your API Key).

B. The Action (Do this...)

• App: Choose Slack.
• Event: Select "Send Channel Message" (to alert a team) or "Send Direct Message" (to alert only yourself).
• Message: Type what you want the alert to say. You can click the "Insert Data" button to include the Booker’s Name and Meeting Time.

C. The Finish

• Click Test to see a sample message appear in Slack.
• If it looks good, click Publish. That’s it!

You can create separate "Zaps" for these other common events:

• Booking Rescheduled: Get an alert if a client moves the meeting.
• Booking Cancelled: Know instantly if a slot has opened back up.
• Meeting Ended: Get a reminder in Slack to send a follow-up email right after the call.

Updated on: 28/01/2026