# Automate appointments on WhatsApp: booking, reminder and open slots

Canonical: https://www.manycontacts.com/en/blog/automate-appointments-whatsapp/
Published: 2026-07-18

Booking by phone is a waiting sport. Booking on **WhatsApp** is what people already do: "do you have a slot on Thursday?". **Automating appointments on WhatsApp** means that sentence actually books, reminds, and, if they cancel, offers another slot.

It serves clinics, academies, real estate (viewings) and any team with a diary. For clinics the detail is in [WhatsApp for clinics](/en/blog/whatsapp-for-clinics/).

## The three pieces

1. **Calendar** (yours: Clinic, Google, the CRM one). Source of truth.
2. **Inbox** that sees the thread and assigns. [Shared inbox](/en/blog/shared-whatsapp-inbox/).
3. **Rules**: confirm, remind, reschedule. [Templates](/en/blog/whatsapp-business-templates/) when there is no [24-hour window](/en/blog/whatsapp-24-hour-window/).

Without 1, you automate theatre: "appointment confirmed" in a slot that does not exist.

## What to automate (and what not)

| Yes | No |
| --- | --- |
| Offer 2–3 slots | Let them pick any time |
| Reminder 24 h before | Five reminders |
| Cancellation → another slot | Diagnosis or a complex quote |
| Ask for location / professional | A 12-button tree |

[AI](/en/blog/whatsapp-ai-agents/) fits "Thursday 10 or Friday 12?". An implant or a mortgage does not.

## Reminders that get read

SMS has a 20% open rate. WhatsApp does not. A short message: date, time, how to cancel. That is utility, not marketing. Do not sneak a promo into the reminder.

From 1 October 2026 Meta bills those utilities even inside the 24 h. It still pays off versus a no-show. Numbers in [API pricing](/en/blog/whatsapp-business-api-pricing/).

## ManyContacts

Panel from **€49/month** (3 users), calendar and scheduled sends in the plan, AI at €0.20 per conversation if you use it. Meta invoices the message.

## Next step

Count the "can you book me in?" calls in a week. That is the volume to automate. [Create the account](https://app.manycontacts.com/register) or [book a demo](https://calendar.app.google/PH1wtumtQQwLGz756).