Appointment reminders: channel, timing and the tone that works

Almost every business reminds people about appointments by now, and in plenty of them it still achieves nothing. The reason is rarely the technology. It is that the reminder arrives at the wrong moment, on a channel nobody reads, or in a tone that sounds like marketing and is therefore swiped away.

The three questions hang together, but they have separate answers. This article goes through them one at a time and names, at the end, what belongs in a reminder and what does not.

A reminder has exactly two jobs. First: bring the appointment back into view during the window in which the day can still be planned. Second: make it easy to say so now, if it does not fit. Everything else — directions, preparation notes, extra offers — is trimming and must not obscure the two jobs. Both jobs rest on something easily overlooked: a number or address you are allowed to hold at all — and that turns on the purpose you collected the contact details for.

That double job routinely gets halved. A great many reminders say only: “Your appointment is tomorrow at 10:30.” Someone who cannot make 10:30 tomorrow knows that just as well after the message — and still has no way of telling you. The message has done one half and left out the more valuable one.

The difference is measurable in the business: a reminder with no route back converts some losses into deliberate losses, but it converts not one of them into a free slot. Why the free slot is worth more than the silent loss is set out in Why appointments fall through.

Timing is the part most systems have set wrongly. A reminder a week ahead lands in a week that has not been planned yet. It is read, noted approvingly and forgotten, because at that moment no action is needed. A reminder the day before, by contrast, meets a mind that is currently sorting out tomorrow. There the appointment is a task, not a piece of information.

As a rule of thumb: the effective window lies between roughly 24 and 36 hours before the appointment. Near enough to fall into the day's planning, far enough to leave you a working day to refill the slot if it is cancelled. A reminder two hours ahead is friendly but operationally worthless: anybody who cancels then leaves a hole you will no longer fill.

With long lead times one signal is not enough. An appointment agreed eight weeks in advance needs two points of contact: one about a week ahead whose purpose is expressly rebooking, and one the day before whose purpose is turning up. The two messages have different jobs and should therefore be worded differently.

And one point that is easily missed: a Monday morning appointment needs its reminder on Friday, not on Sunday evening, if you cannot be reached at the weekend. Setting a rigid 24 hours without checking it against your own contactable hours produces cancellations that nobody reads.

There is no best channel, there is a trade. The honest version:

The workable combination for most businesses: email as the confirmation straight after booking, a text message as the reminder the day before. The confirmation may be detailed; the reminder has to be short.

On cost, without varnish: text messages are billed per segment. One segment holds 160 characters; once a message runs longer, capacity per segment drops to 153. As soon as characters appear that lie outside the standard message character set — emoji or typographic quotation marks, say — the message switches to a different encoding and holds only 70 characters. So one emoji in the text can triple the cost. In our salon product a segment costs ten cents on the German tariff; at 200 appointments a month and one single-segment reminder per appointment that is 20 euros a month. Prices differ in other markets — the arithmetic does not.

Those 20 euros are to be held against a single slot left unfilled. In most trades the text message wins that comparison comfortably; where ticket prices are very small it can lose it. Work it out once for your own average appointment value rather than adopting the answer. What that looks like set up inside an appointment system is shown, for example, by Salon Wizard's salon software.

A reminder is not there to sell. The moment it sounds like marketing it gets treated like marketing — skimmed and swiped away. That is why so many well-meant reminders do not work: they are too warm, too long, and they put the business at the centre instead of the appointment.

Three rules that hold reliably:

• Facts first. Date, time, place, service. Not the greeting, not the business name as a headline.
• One sentence, one action. “Does it not fit? Reschedule here.” No paragraph about looking forward to the visit.
• No pressure. Sentences like “please note that charges apply if you do not attend” belong in the booking terms, not in the reminder. In the reminder they only raise the barrier to replying at all.

Do not address anybody in gendered terms, and avoid templates that have to guess a form of address. A neutral opening with the name is shorter, safer and does not read like a mailshot. If the name is missing from your data, the message works without it — a wrongly guessed form of address is worse than none.

As a checklist for your template. What belongs in:

• Date and time, written out with the day of the week
• The service booked and how long it takes
• The location, if you have more than one
• A link to reschedule and to cancel, reachable without logging in
• A fallback: a phone number for everything the link does not cover

What does not belong in: offers, newsletter notes, review requests, more than one link, attachments. Every additional element lowers the chance that the one important link gets clicked.

Two small things with a large effect. First: the cancellation link has to work even when the message is opened on a device where no account was ever created — otherwise you have merely moved the obstacle. Second: check once a quarter whether your own reminder lands in the promotions folder, by sending one to an address at a large provider. A channel that is quietly filtered out looks, in your system, exactly like a delivered one.