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.
To post into a channel, your automation tool (Zapier, Pabbly, Make, or ViaSocket) needs permission to your Slack workspace. When you connect Slack, you’ll be asked to authorize it — if you want alerts in a private or shared channel, make sure you have permission to add apps to that workspace, or ask a Slack workspace admin to approve the connection.
Step 1: Install Zapier (any automation tool) in Cal ID
1
Log in to Cal ID
Log in to your Cal ID account.
2
Open the App Store
Go to the App Store in the sidebar.
3
Install Zapier
Find the Zapier app and click Install.
4
Generate your API key
Generate the API key and Copy it.
Step 2: Create your automation (the Zap)
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 — new bookings will now post to Slack automatically.
Other useful triggers
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.