A WhatsApp appointment reminder is a short pre-approved message — Meta calls it a template — sent from a WhatsApp Business number to a client who has agreed to hear from you, with the name, service and time filled in by your software. Meta charges per message delivered, so every reminder has a unit cost, and you cannot simply type one to a client who last messaged you three days ago.
This is for salon and barbershop owners weighing a move from text reminders to WhatsApp: the rules, the three ways to send, and what a reminder costs.
How a WhatsApp reminder reaches the client
Three things have to be true before a reminder lands.
The client opted in. Meta’s rule is flat: you can only message users who have opted in to receiving messages from you, which in practice is a consent line on your booking form.
The message is an approved template. When a client messages or calls you, a 24-hour timer called the customer service window opens, and inside it you can type anything you like. A reminder goes out the day before an appointment, when that window is almost always shut — and with it closed, Meta allows only template messages. Templates are written in advance, submitted to WhatsApp and reviewed before you can send them, with the variables ({{name}}, {{time}}) filled in at send time.
The template is categorised as utility. Utility covers templates with a transactional or informational job, which is what a reminder is, and it is the cheaper category. Anything promotional makes it marketing, including mixed content such as a reminder carrying an offer, and since April 2025 a utility template WhatsApp reads as promotional is approved as marketing rather than rejected. So “Reminder: Friday 3pm with Sam” is utility, and “Reminder: Friday 3pm — 10% off colour this month” is marketing, priced as marketing every time.
The three ways a salon sends them
| Route | What you do | What it costs | Automatic |
|---|---|---|---|
| Free WhatsApp Business app | Type each reminder, or keep a quick reply and paste it, from your own phone | Nothing per message — Meta’s rate card covers the Business Platform, not the free app | No |
| WhatsApp Business Platform through a provider (Twilio, 360dialog and others) | Register a number, write and submit templates, then wire it to your calendar | Meta’s per-message rate plus the provider’s fee. Twilio’s handling fee is $0.005 a message inbound or outbound, and it lists utility and authentication templates as starting at $0.0034 a message (twilio.com/en-us/whatsapp/pricing, US dollars, checked November 12, 2026) | Only if you build it |
| Booking software with WhatsApp built in | Switch reminders on and pick the timing | Inside the plan, or metered per message once a monthly allowance runs out | Yes |
For a three-chair shop the middle route is rarely worth it: the number registration, the template submissions and the join to your calendar are a developer’s job, and you still pay Meta per message at the end of it.
What a WhatsApp reminder costs
Meta moved from conversation pricing to per-message pricing on July 1, 2025, charges on delivery rather than on send, and does not charge for messages clients send you. The rate depends on the template’s category and the client’s country code: the UK is its own market on Meta’s rate card, the US is priced regionally with Canada, and Ireland sits in a “Rest of Western Europe” group. Meta publishes those rate cards per currency, and can change them at the start of any quarter.
One change matters for anything written before this autumn. Since October 1, 2026 Meta has resumed charging for utility templates sent inside an open customer service window, which had been free since July 2025, and for service messages once the free 1,000 a month per number are used. Advice built on “send it inside the window and it is free” is a year out of date.
What you will see in practice is your booking software’s line for messages. Fresha, for example, includes 20 automated text or WhatsApp notifications a month — per team member on its Team plan — then charges €0.12 a text or €0.12 to €0.16 a WhatsApp (fresha.com/pricing, euro edition, checked November 12, 2026; Fresha serves the page in local currency, so check your market). A shop sending 120 reminders a month is 100 messages past the allowance, so roughly €12 to €16 on top of the subscription. Metered messaging is the line to check on any quote: small per reminder, and it grows with how busy you are.
WhatsApp or SMS?
WhatsApp gives you delivery and read receipts, a thread the client can reply in, and no 160-character ceiling, so the address and a map pin fit in the same message. SMS has one advantage that outweighs a lot: it reaches any phone, with no app and no WhatsApp opt-in.
The sensible setup is both, in order — WhatsApp first, SMS when WhatsApp cannot deliver. A client who has never used WhatsApp still gets reminded, and you are not running two systems.
How bbook sends WhatsApp reminders
bbook sends the booking confirmation and the reminder by WhatsApp first and falls back to SMS when WhatsApp cannot deliver, at whatever notice you set — minutes to days before, with two hours as the default. You do not register a number with Meta, write templates or wait on approvals; the message goes out with the client’s name, the service, the time and your shop details already in it. Email reminders are on every plan, including the free one; WhatsApp and SMS come with Business Premium, priced per user in your own currency on the pricing page.
The appointment reminders page shows the three messages that go out for every confirmed appointment and where to set the timing. If you are writing your own wording, 25 appointment reminder text templates has lines you can lift for confirmations, 24-hour reminders and no-show follow-ups, and Fresha’s pricing and fees breaks down what metered messaging adds to a Fresha bill.
FAQ
Can I send WhatsApp appointment reminders for free?
By hand, yes — the WhatsApp Business app is free and Meta’s per-message rate card applies to the Business Platform rather than the app, so a solo stylist with a handful of bookings can type them. Automated reminders are not free: they go through the Business Platform as approved templates and Meta charges per message delivered, which your software either includes in your plan or meters.
Do clients have to opt in to WhatsApp reminders?
Yes. Meta only allows you to message people who have opted in to hear from you, which is normally a consent line on the booking form your client fills in anyway. Keep a record of it, and make sure the client can stop the messages as easily as they started them.
Is WhatsApp better than SMS for appointment reminders?
For most salons it is the better first attempt: a threaded message the client can reply to, no character limit, and read receipts. It is not a replacement, because it only reaches clients who use WhatsApp, so the reliable setup sends WhatsApp first and SMS as backup.