Connect a calendar for booking
Calendly, Cal.com and Chili Piper connect with a key; HubSpot meeting links and GoHighLevel calendars come with those CRM connections. What each one can book.
Last reviewed November 7, 2026
What a calendar connection does
A calendar connection lets ACR list the event types or meeting types you can book, find their open times, and book a lead in with their name and email. A campaign with the Book appointment objective uses it. Calendars have no reading switch: connecting is enough.
Each booking is recorded once, so a retried request never books the same lead twice. When the vendor says a time is taken, ACR treats it as gone so another can be offered. When the vendor will not book from a server on your plan, ACR gets a one-time booking link to send the lead instead.
Which calendars, and how they connect
| Calendar | How it connects | Ready today? | What it books |
|---|---|---|---|
| Calendly | Personal access token, or a sign-in once Growth Dept registers its Calendly app | Yes, with a token | Your active event types, booked directly. Calendly's free plan allows five such bookings a day per user; after that, or when your plan refuses, the lead gets a one-time link. |
| Cal.com | API key starting with cal_ | Yes | The event types of the account that owns the key, booked directly. |
| Chili Piper | API key, created by an admin | Yes, with a key | A person's own meeting types, booked directly. A Concierge router first decides who the lead meets; when it offers no time, the lead gets the router's link. |
| HubSpot meeting links | The HubSpot connection | No: needs Growth Dept's HubSpot app | Meeting links and their open times. HubSpot may refuse bookings made through a public app; that is not confirmed. |
| GoHighLevel calendars | The GoHighLevel connection | No: needs Growth Dept's Marketplace app | The sub-account's active calendars and free slots, booked as confirmed appointments. ACR creates or updates the lead's contact first. |
Connect Calendly, Cal.com or Chili Piper
- Create the key. In Calendly, open your profile, then Developer, Personal access tokens, and give the token access to users, event types, availability, scheduled events and scheduling links. In Cal.com, open Settings, Developer, API keys. In Chili Piper, an admin creates one under Command Center, Integrations, API access tokens, with permission to read routers, meeting types and availability, and to schedule.
- In ACR, open Integrations, find the calendar under Calendars for booking and press Set up.
- Paste the key and press Test and save. ACR makes one read to check it. Only an admin or the owner of the store can connect.
A Chili Piper router's open times depend on who it routes the lead to, so ACR asks for them with the lead's details. ACR writes nothing to these calendars apart from the booking.
Every calendar connection has been tested against a simulated version of the vendor's API only.