Booking over WhatsApp, straight into Google Calendar. With Arbol, with no manual copying.
How it works
The patient writes on WhatsApp.
Arbol checks availability in Google Calendar and offers times.
It creates the event in Google Calendar and confirms on WhatsApp.
If they reschedule, it moves it in Google Calendar and lets them know.
What each one is
Customer messaging
WhatsApp
WhatsApp Business is WhatsApp's (Meta) offering for companies, and it comes in two versions. The WhatsApp Business app is free and built for small businesses: a business profile, a product showcase and automated replies, with limited customization and integration. The WhatsApp Business Platform is for medium and large businesses: it gives API access to message customers at scale, connect other systems and send template messages, which are billed per message.
Confirm appointments, send reminders and answer patient questions on the channel they already use.
WhatsApp has more than 3 billion monthly users, according to Mark Zuckerberg on Meta's first-quarter 2025 earnings call. Source: techcrunch.com (opens in a new tab)
Meta publishes the WhatsApp Business Platform Cloud API, built on the Graph API, to send text, media, interactive and template messages and to receive incoming messages and delivery statuses by webhook.
WhatsApp integrationCalendar and scheduling
Google Calendar
Google Calendar is Google's calendar, used with a personal Google Account or within Google Workspace. It lets you create events, share calendars and publish appointment schedules with a booking page where others pick a time. Some appointment schedule features require a Google Workspace or Google One subscription.
Keep each provider's schedule and let patients book appointments in open slots.
Google Workspace, which includes Calendar, has more than 3 billion users and more than 13 million customers. Source: workspace.google.com (opens in a new tab)
The Google Calendar API is a REST API with OAuth 2.0 to read and create events and calendars, manage access permissions and receive push notifications of changes at an HTTPS webhook.
Google Calendar integration
Questions
Does it work with several Google Calendar calendars?
Yes: the assistant checks the availability of every Google Calendar calendar your organization connected before offering a slot.
Do WhatsApp or Google Calendar endorse Arbol?
No. WhatsApp and Google Calendar are trademarks of their owners and do not sponsor or endorse Arbol. Arbol works on your organization's side, with the accounts and processes you already have with each.
What happens to patient data?
They are health data, sensitive under your country's data protection law: processed for a stated purpose, with the patient's authorization and with encryption and isolation per organization. Every conversation is recorded and exportable.
Trademarks and logos belong to their owners. WhatsApp and Google Calendar do not sponsor or endorse Arbol. All integrations · Arbol's API
Let's look at WhatsApp and Google Calendar in your operation.
A 30-minute demo with your team: how you work today, what we connect first and how long it takes. You leave with a written proposal.