Appointment Reminder SMS That Customers Can Confirm by Reply
Send appointment reminder SMS automatically before every booking, let customers reply to confirm, cancel or reschedule, and fill freed slots fast. Works for clinics, salons, car service centres, tax consultants and coaching institutes.

An appointment reminder SMS is a scheduled text sent before a booking with the date, time, place and a way to confirm or cancel. It is a service message, so it reaches DND numbers. Most businesses send one reminder a day before and one a few hours before, which helps reduce no-shows.
Two-step reminder schedule
One reminder a day ahead, another two hours before.
Reply C to cancel
Cancellations arrive in your panel so you can rebook the slot.
Calendar and sheet sync
Pull bookings from Google Sheets, Zoho or your booking software.
Multi-branch sender control
One header, separate sub-accounts and reports for each branch.
Why appointment reminder SMS reduces no-shows
Many missed appointments happen simply because the customer forgot the date or time. An appointment reminder SMS puts the date, time and place in front of the customer at the right moment, with an easy way to say they cannot come. That turns a silent no-show into a cancellation you can use.
A car service centre in Coimbatore can remind owners the evening before to bring the service booklet, and send a pickup ready alert later. A salon can remind clients two hours ahead. A chartered accountant can remind clients of a filing meeting and list the documents to bring.
Choosing when to send reminders
Timing matters as much as wording. A simple schedule works for most businesses.
- Booking confirmation: immediately, with date, time and address.
- First reminder: 24 hours before, with reply options.
- Second reminder: 2 hours before for short-notice services like salons and clinics.
- Follow-up: after the visit, for feedback or the next due date.
- Avoid late-night sends, even though service SMS is allowed at any hour.

Sending reminders for many branches and staff
Groups with several branches, such as salon chains, dental clinics or service centres, should use one brand header for all reminders and include the branch name as a variable. Give each branch a sub-account so managers see their own reminders, replies and costs, while head office controls templates.
When a staff member is on leave, send a short reschedule SMS to all their bookings with a link or number to pick a new slot. A template prepared for this in advance saves the front desk a morning of phone calls. Review replies at the end of each day so cancelled slots are not left empty.
Compliance and when to add other channels
Reminders for a booking the customer made are service messages under DLT. Register them with a -S header and approved templates. If you want to promote a new service in the same message, create a separate promotional template instead. Health-related reminders should not mention the treatment or condition, just the doctor or department and time.
WhatsApp suits bookings that need a location pin, a document checklist or a payment link for an advance, at utility rates of ₹0.12 to ₹0.16 on our plans. For elderly customers, an automated voice reminder in their language helps. SMS remains the most reliable base layer because it needs no app or data.
Sending outside India too?
We also send SMS and WhatsApp messages to customers abroad, with help on each country's sender ID and consent rules.
How it works
Export or connect your bookings
Link your booking software by API, or sync a Google Sheet through Zapier or Pabbly.
Register reminder templates
Confirmation, 24-hour, 2-hour and follow-up templates with name, time and place.
Turn on two-way replies
Activate a reply keyword so Y and C responses reach your panel.
Schedule and review
Set send times, then compare no-shows month on month using your booking data.
Frequently asked questions
When should I send an appointment reminder SMS?
Send a confirmation when the booking is made, a reminder about 24 hours before, and, for short-notice services like salons or clinics, a second reminder about two hours before. Adjust based on how far customers travel. Someone coming from another town needs the reminder earlier than someone nearby.
Can customers cancel an appointment by replying to the SMS?
Yes, with two-way SMS. Include a simple keyword in the template, such as C to cancel or Y to confirm. Replies arrive in our panel or at your server by webhook, so your staff or booking system can free the slot and offer it to someone else.
Do appointment reminders need customer consent?
A reminder for a booking the customer made is a service message related to that booking, so it does not need separate marketing consent. Mention at the time of booking that they will receive SMS reminders. If you want to send offers later, collect marketing consent separately and honour opt-outs.
Can I send reminders from a Google Sheet?
Yes. Many small businesses keep bookings in Google Sheets. Using Zapier or Pabbly Connect, a new or upcoming row can trigger our API with the customer's name, date and time. You can also upload the sheet as CSV in our panel and schedule the batch.
How much do appointment reminders cost?
Each delivered reminder costs ₹0.20 on Starter or ₹0.15 on Business, plus 18% GST. A clinic sending two reminders for 40 appointments a day uses about 2,400 SMS a month, which fits the Starter plan. Two-way SMS replies are priced on request.
Related pages
Send your first SMS today
From ₹0.15 per delivered SMS, credits valid for a year, and DLT help from a real person.


