Complete Guide · Updated 2026

Online appointment booking
on WhatsApp with AI automatic reminders

Q: How does automatic appointment booking work on WhatsApp?

The Reepli AI assistant connects to your calendar (Google Calendar, Calendly, etc.). When a customer sends a WhatsApp message, the bot offers available time slots, confirms the appointment and sends an automatic reminder 24 hours before. Everything happens without manual intervention.

Q: Does it work with Google Calendar?

Yes, Reepli syncs in real time with Google Calendar, Calendly and most online calendars. The slots offered reflect your real availability and confirmed appointments are added automatically to your calendar.

Q: How much does WhatsApp automatic appointment booking cost?

Automatic appointment booking is included in all Reepli plans starting at €79/month (Starter plan), with no extra cost per appointment or per message. A flat fee, that's it.

Q: Do I need to change my WhatsApp number?

No, Reepli connects to your existing WhatsApp Business number. Your customers don't have to change anything — they keep writing to the same number, and the AI manages appointments on your behalf.

With Reepli.ai, your customers book appointments online 24/7 on WhatsApp, get an instant confirmation and an automatic reminder — you don't lift a finger.

-60% missed appointments (no-shows)

24/7 appointment booking, even at night

10 min to set everything up

The problem How it works By industry Comparison Get started FAQ

Quick summary

67% of customers choose the provider who responds first to their request, according to Harvard Business Review — not the cheapest or the highest rated.
The average no-show rate in France reaches 30% in healthcare and personal services, equal to €200 lost per missed appointment.
A WhatsApp reminder 24 hours before the appointment benefits from a 98% open rate (Meta 2024) versus 20% for email — the reminder is read, so it's honoured.
Reepli.ai connects in real time to Google Calendar, Calendly and Outlook: the slots offered on WhatsApp reflect only your real availability.
Reepli.ai users see an average -60% no-shows from the first month thanks to the combination of instant confirmation + automatic day-before reminder.
Automatic appointment booking is included from €79/month — no extra cost per appointment, set up in less than 10 minutes.
Details in how it works and use cases by profession.

Official partner Reepli is a certified Meta Tech Provider — your WhatsApp Business integration is secure and compliant.

The problem

Every missed appointment costs you money

You're on site, in a consultation or in a meeting. Your phone rings, a customer wants to book an appointment — but you can't pick up. Will they call back? No, they'll go to the competitor who answered first. That's why a WhatsApp Business AI chatbot changes everything.

67%

of customers choose the provider who responds the fastest to their request

30%

of appointments booked by phone are forgotten or cancelled without notice

3-4h

lost every week managing appointments manually (calls, SMS, confirmations)

The problem isn't your service — it's your availability. You can't answer everyone, all the time. But Reepli.ai, your AI assistant on WhatsApp, can — 24/7, never forgetting a customer.

How it works

How WhatsApp online appointment booking works

The customer messages you on WhatsApp

They send "I'd like to book an appointment" — or any variation. The Reepli.ai AI understands the intent through natural language processing, no matter the wording.

The AI offers available time slots

Reepli.ai connects to your calendar in real time (Google Calendar, Calendly...) and only shows free slots. The customer picks one in a single tap.

Instant confirmation + added to your calendar

The appointment is confirmed by WhatsApp message to the customer, added to your Google Calendar, and you receive a notification. Everything is in sync.

Automatic reminder 24 hours before

The customer gets a WhatsApp reminder the day before with the details (time, address, documents to bring). Result: -60% no-shows. After the appointment, the AI can also suggest a draft Google review request automatically.

By industry

Online appointment booking software for every profession

Trades & construction

Plumbers, electricians, painters — you're on the job site, not at a desk. Reepli.ai books site-visit appointments for you, sends the address to the customer and blocks the slot in your schedule.

Booking on-site quote appointments
Automatic reminder with the job site address
Post-job message + automatic Google review draft suggestion

Health & wellness

Osteopaths, physiotherapists, fitness coaches — your patients want to book at 10 pm from their couch. Reepli.ai manages slots, reminds them of instructions (fasting, bringing X-rays...) and cuts your no-shows by 60%.

Booking by consultation type
Personalised pre-appointment instructions
Cancellation and rescheduling handling

Beauty & aesthetics

Hairdressers, beauticians, barbers — appointment booking accounts for 40% of your phone calls. With Reepli.ai, free up your line and let your customers book directly on WhatsApp.

Service selection + automatic duration
Reminder with the salon address
Suggesting the next appointment after the service

Consultants & coaches

Business coaches, HR consultants, trainers — your prospects want a discovery call. Reepli.ai qualifies the request with AI and offers a fitting slot automatically.

Qualification before booking
Automatic video call link delivery
Reminder sequence + automated post-call follow-up

Comparison

Reepli vs Calendly vs Doctolib: appointment booking comparison

	Phone / SMS	Calendly / Doctolib	Reepli.ai
Availability	Business hours	24/7 (web)	24/7 on WhatsApp
Channel	Call / SMS	Web link to share	WhatsApp (already installed)
Automatic reminders	Manual	Email (20% open rate)	WhatsApp (98% open rate)
Lead qualification	You handle it	Basic form	Conversational AI
Google review after appointment	No	No	Automatic draft
Built-in CRM	No	No	Included
Price	"Free" (your time)	€12-16/month + friction	From €79/month, all included

Reepli.ai's decisive advantage on WhatsApp: your customers already use it. No need to send them to a third-party site, no app to download, no account to create. They write, the AI replies and handles everything. Also check out our complete guide to AI WhatsApp Business chatbots.

Start now

Set up your appointment booking software in 10 minutes

Create your Reepli account

Connect WhatsApp + your calendar

Link your WhatsApp Business number and sync Google Calendar in 2 clicks. Reepli detects your available slots in real time. To learn more about the connection, see our WhatsApp Business API guide.

Customise your messages

Adapt confirmation, reminder and follow-up messages to your tone and your business. The AI adapts — not the other way around. Get inspired by our 7 WhatsApp automatic message templates.

Done — your customers can book

Share your WhatsApp number (or your new WhatsApp username) on your website, social channels and Google Business Profile. Appointments come in on their own.

Try free for 7 days → See pricing

Frequently asked questions

FAQ — WhatsApp online appointment booking

How does automatic appointment booking work on WhatsApp?

The Reepli.ai AI assistant connects to your calendar (Google Calendar, Calendly, etc.). When a customer sends a WhatsApp message, the bot offers available time slots, confirms the appointment and sends an automatic reminder 24 hours before. Everything happens without manual intervention.

Does it work with Google Calendar?

Yes, Reepli.ai syncs in real time with Google Calendar, Calendly and most online calendars. The slots offered reflect your real availability and confirmed appointments are added automatically to your calendar.

By how much are no-shows reduced?

Our customers see an average reduction of 40 to 60% in missed appointments thanks to automatic reminders sent 24 hours before via WhatsApp. WhatsApp's 98% open rate ensures the reminder is read.

How much does WhatsApp automatic appointment booking cost?

Automatic appointment booking is included in all Reepli.ai plans starting at €79/month (Starter plan), with no extra cost per appointment or per message. A flat fee, that's it.

Do I need to change my WhatsApp number?

No, Reepli.ai connects to your existing WhatsApp Business number. Your customers don't have to change anything — they keep writing to the same number, and the AI manages appointments on your behalf.

Can the confirmation and reminder messages be customised?

Yes, all messages are fully customisable: tone, content, reminder send time, included information (address, preparation, documents to bring). The Reepli.ai AI adapts to your communication style.

Going further