How does a WhatsApp appointment reminder flow work?
- Start the flow from a booking: a signed webhook from your booking software, a new Calendly booking, a tag you add, or a manual start for one customer.
- Wait with the Delay step until the right time, for example the evening before.
- Send an approved template with the appointment details and quick-reply buttons: Confirm and Reschedule.
- Wait for the reply with a timeout, then branch with If / Else on which button was pressed.
- Confirm with a short text, or hand a reschedule to your team with the Human Handoff step so a person offers new slots.
- Record the outcome by tagging the contact or writing a row to a Google Sheet.
Sample reminder template
Hello {{1}}, this is a reminder of your appointment on {{2}} at {{3}} with {{4}}. Please confirm so we can keep your slot. [Confirm] [Reschedule]
This is utility-style wording: it concerns a booking the customer made. Submit it to Meta for approval under the utility category. Meta's review typically takes under a day but is not instant, so submit well before launch.
What do Meta's rules mean for reminders?
- You need an approved template for a reminder sent outside the 24-hour window, which is almost always the case.
- Utility messages are billed per message. Providers report that from 1 October 2026 utility templates sent inside an open window are billable too. Check Meta's current rate card; our cost guide explains the categories.
- Opt-in matters. A booking made by the customer is a reasonable basis for a reminder about that booking; promotions need separate consent.
Which businesses use this?
Clinics, salons, coaching centres, service engineers and anyone whose revenue depends on people turning up. Industry pages: clinics, salons, coaching institutes.
What are the limits?
- The flow sends and reads replies; it does not itself check a calendar for free slots. Rescheduling is handed to a person or to your own system through the API.
- Reminder timing depends on the booking data you pass in.
- This page describes what the integration does today, including its limits. If you need something it does not do, our custom integration service scopes it as a project.
Frequently asked questions
Can I send appointment reminders on WhatsApp automatically?
Yes. Build a flow that waits until the right time, sends a Meta-approved template with Confirm and Reschedule buttons, then branches on the reply. It can start from a webhook, a Calendly booking, a tag or a manual start.
Do I need a template for reminders?
Yes, for almost every reminder, because it is sent outside the 24-hour customer window. Submit it under the utility category for Meta approval.
Does InboxWA check my calendar and offer free slots?
Not by itself. A reschedule request is handed to your team, or your own system can offer slots through the API.
What does a WhatsApp reminder cost?
Meta bills a per-message fee for utility templates, plus your platform plan. Check Meta's current India rate card; the pricing guide explains how the categories work.
Try it on your own account
Plans from ₹999/month, zero markup on Meta's message fees. 7-day free trial, no card required.