The maths of late cancellations is simple and almost never calculated. In a practice with 20 to 30 appointments per day, a no-show rate of 10 to 12% means 2 to 3 empty slots every day. At CHF 100 to 200 per slot, that is CHF 200 to 600 of unrealised revenue per day. Over a working year, the figure runs between CHF 40,000 and CHF 120,000.

The reminder call exists to reduce that number. It works. But it has a cost that is rarely accounted for: the time of whoever makes the calls, every day, including the last working day before a public holiday.

The structure of an automated reminder system

An effective system is not simply “send an SMS the day before”. It is a sequence covering the full appointment cycle:

  • Immediate confirmation at booking. As soon as an appointment is made, the patient or client receives a confirmation with the date, time, address, and a link to cancel or reschedule with one click. No action required from the practice.
  • Reminder 48 hours before. A more substantial message: recaps the details, includes any specific instructions (what to bring, how to prepare), and offers the cancellation link again. 48 hours gives the practice time to fill the slot if the client cancels.
  • Reminder 2 hours before. Short, confirmatory only. For anyone who did not respond to the previous message.
  • Automatic cancellation handling. When a client cancels via the link, the slot opens automatically for new bookings. If a waiting list exists, it is notified instantly. The time between cancellation and potential slot reopening is seconds, not hours.
Preferred channel: SMS, WhatsApp or email?

It depends on your client profile. In the Swiss practices we have analysed, the SMS open rate within 30 minutes was 93%. WhatsApp has similar rates but requires explicit consent under Swiss nFADP. Email works for confirmations but has a much lower open rate for same-day reminders. A well-built system manages channels by preference: clients who want SMS get SMS, those who prefer email get email.

The result, measured

Metric
Before
After
Daily time on reminders
42 min/day
→
6 min/day
Late cancellation rate
12%
→
3.8%
Slots recovered after cancellation
~10% of cancelled slots
→
~68% of cancelled slots
Reception hours recovered per week
—
→
3.2 h/week
CHF 28,400
revenue recovered in the following year, slots and time combined
3.8%
late cancellation rate after implementation (from 12%)
2.8 weeks
to reach break-even on the implementation cost

“We stopped making reminder calls and no-shows went down. I did not expect that. I assumed the calls were keeping the rate low. It turns out the automated system works better.”

Practice owner, physiotherapy and rehabilitation · Canton Ticino

Is it worth it for a small practice?

The break-even is very low. If your practice has 15 or more appointments per day and a no-show rate above 5%, the savings from recovered slots in the first month almost always cover the implementation cost. If volume is lower, the primary saving is in reception time, which can be redirected to higher-value activities.

The free audit below calculates the number for your specific situation: practice type, team size, estimated hours, hourly rate. It takes 90 seconds.

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The next step

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Describe your situation: we will map the workflows, calculate the cost of each one, and tell you honestly whether the numbers justify implementation. The report is yours regardless of what you decide.

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