WhatsApp appointment reminders

Cut no-shows by reminding clients on WhatsApp — and let them confirm or reschedule with a single reply.

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The problem

No-shows cost clinics, salons, and service businesses real money. SMS reminders are expensive and one-way; phone calls eat staff time.

The solution

Schedule a WhatsApp reminder a day before each appointment. Because Vesper delivers inbound replies to your webhook, clients can confirm, cancel, or reschedule right in the chat — and your system updates automatically.

How it works

1

Connect your business number with a QR scan.

2

A day before the appointment, send a reminder with the date and time.

3

Ask the client to reply YES to confirm or NO to cancel.

4

Read their reply from the webhook and update your calendar automatically.

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curl -X POST https://api.vespergateway.com/api/v1/messages/send/text \
  -H "x-api-key: vsp_your_key" \
  -H "Content-Type: application/json" \
  -d '{
    "session": "clinic-line",
    "to": "905551234567",
    "text": "Reminder: you have an appointment tomorrow at 14:00. Reply YES to confirm or NO to cancel."
  }'

Why Vesper

  • Two-way: confirmations and cancellations come back via webhook
  • Cheaper than SMS, far higher open rates
  • Schedule reminders from any backend or automation tool
  • One panel for multiple branches with multi-session

Start reducing no-shows

Connect your number and send your first reminder today.

Start reducing no-shows

Other use cases

WhatsApp order notifications

Keep customers informed at every step — order confirmed, shipped, out for delivery — automatically, on the channel they actually read.

WhatsApp customer support

Meet customers where they already are. Receive every message on a webhook, pipe it into your helpdesk, and reply from your own tools.

WhatsApp OTP & verification

Deliver login codes and verification messages over WhatsApp — cheaper than SMS, with better delivery in many regions.