Skip to main content
Enquiry
Techmits
Automation & AI

Reminders & Reservations

Automatically send a reminder message before or after a booking, and receive bookings from an external form via API.

Last updated 2026-08-14

If your business takes bookings or appointments, WhatsApp Cloud can automatically send a reminder message a set amount of time before (or after) each one — for example, "30 minutes before" or "1 day before". Reservations themselves are created either through your own booking website/form (connected via a simple API) or however else your booking data reaches this system.

Create a reminder rule

Set up a rule that sends a chosen message a fixed amount of time before or after a reservation's start time.

  1. Go to Reminders from the left menu.
  2. Create a campaign of kind "Reminder" first (see Campaigns) — this is the message that will be sent.
  3. Create a reminder rule that picks that campaign, and choose "before" or "after", plus the amount and unit (minutes/hours/days).
  4. Save — the rule applies automatically to every new reservation from then on.
You can have more than one reminder rule pointing at the same reservation (e.g. one 24 hours before, another 1 hour before).
Turning a rule off (rather than deleting it) is done from the reminder rule itself.

Connect an external booking form

Reservations are created via a simple API call from your own booking website or form, using a private API key unique to your account.

  1. Go to Reminders from the left menu to find your account's booking API key, with a copy button and an example request.
  2. Have your booking website/form send a request to the reservation API with that key whenever a booking is made.
  3. Reminder rules apply automatically to reservations created this way.
This is a technical integration step, typically handled by whoever built or manages your booking form.
The API key can be regenerated at any time from the same page if you need to revoke the old one.

View reservations

See every reservation that's come in, upcoming and past.

  1. Go to Reservations from the left menu.

Frequently Asked Questions

Can reminders and reservations sync with Google Calendar?

Not currently — two-way calendar sync isn't available. It's a possible future addition if there's demand for it.

Can I set up reminders without a booking form/website?

Reservations are created through the booking API today — there isn't a manual "add a reservation by hand" screen. If you don't have a booking form of your own, you'd need one that can call the API, or a simple form built to do so.

What happens if a reservation's time changes after a reminder is already scheduled?

A reminder that was already scheduled won't automatically reschedule if the booking time changes — it still fires at the originally-computed time unless you deactivate that reminder rule.

Ready to Get Started?

See it for yourself

Create a free account and connect your WhatsApp Business number in minutes.

Get Started