Appointment reminders

The need

A practice, a school or a workshop loses time on every missed appointment. A reminder the day before changes the attendance rate, provided it is personalised and can be replied to.

The setup

1. Contacts. CSV import with global de-duplication, groups and tags. Collections are cursor-paginated, so a list of several thousand people stays navigable.
2. A message template. Free variables, each with a default value, let you write one text that adapts to every recipient.
3. A scheduled campaign. The campaign follows an explicit state machine, from draft to completion, with pause, cancellation and recovery after an incident.
4. An auto-responder. A keyword rule handles confirmation or cancellation replies. Other triggers exist: regular expression, out of hours, first contact.
5. A webhook. Every reply can be pushed to your calendar or to an automation tool such as n8n.

What to watch

The segment counter shows how many messages a text really represents once the encoding is taken into account. A single accented character can drop a segment from 160 to 70 characters: better to see it before sending than on the carrier's bill.

Per-SIM quotas stop a campaign from draining a line within minutes and triggering a suspension at the carrier.