Google Calendar booking - HealOS Docs

Settings → Automations → Google Calendar → Connect. Allow the popup, sign in to the Google account that can see every provider’s calendar, and grant access.

The Google Calendar dialog

Setting	What it does
Calendar to use	The calendar to book into. Becomes Fallback calendar once you add providers.
Providers	One row per doctor: their own calendar, specialty, a one-line blurb, optional custom working hours. The AI asks which provider the caller wants.
Appointment types	Name, duration, buffer.
Working hours	Per day.
Booking rules	Min notice, Max advance (days), Allow double-booking (keep off), and External busy calendars.

External busy calendars takes iCal feed URLs, one per line. Times booked in another system are read live before every offer, so they are never double-offered. Only busy times are read; event details stay private.

Two things to know

Calendars you have subscribed to (imported, read-only) cannot be booked into. The AI needs a calendar the connected account can write to. Add the subscribed one as an external busy calendar instead.

Your Google calendar’s timezone is treated as the source of truth. Make sure it matches the practice.