# Send appointment reminders with SMS and Twilio: n8n workflow

> Started by another system calling it, and works across Twilio. 3 steps: small enough to read in one sitting and change without fear.

Source: https://millionrounds.com/workflow/send-appointment-reminders-with-sms-and-twilio (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Scheduling](https://millionrounds.com/workflows?category=Scheduling#library)

# Send appointment reminders with SMS and Twilio

Started by another system calling it, and works across Twilio. 3 steps: small enough to read in one sitting and change without fear.

Small

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fsend-appointment-reminders-with-sms-and-twilio)

**3 steps** Small: readable in one sitting

**0** Branches: places the flow splits

**0** Loops or waits

**1** Service it connects to

## The flow

Starts it 1 Logic 1 Service 1

The steps in the order they run, from what starts it.

- 1 **Reminder Webhook** Webhook *Starts it*
- 2 **Extract Appointment Data** Code *Logic*
- 3 **Send SMS Reminder** Twilio *Service*

## How it's built

- **Starts on:** Another system calling it
- **Steps:** 3
- **Size:** Small: readable in one sitting
- **Connects to:** Twilio
- **Model:** None. This is plumbing, not judgement

## Questions

What does it need to run?

An n8n account, plus your own Twilio account. You connect your own accounts after importing it; none are included.

What starts it?

It starts on another system calling it.

Does it use AI?

No. Every step is fixed logic or a call to a service, so it does the same thing every time.

How long does it take to set up?

Not long. At 3 steps it can be read in one sitting and changed without fear.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 3 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fsend-appointment-reminders-with-sms-and-twilio)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Twilio](https://millionrounds.com/workflows?service=Twilio#library)

## Workflows like it

Also scheduling, with the same services where possible, closest in size first.

- [**Book calendar appointments from WhatsApp with Google Calendar** 4 steps · Google Calendar, Twilio](https://millionrounds.com/workflow/book-calendar-appointments-from-whatsapp-with-google-calenda)
- [**Smart client reminder bot with Google Calendar and OpenAI** 4 steps · calls a model · Google Calendar, Google Sheets](https://millionrounds.com/workflow/smart-client-reminder-bot-with-google-calendar-and-openai)
- [**Time spent in meetings every week with Google Calendar** 5 steps · Google Calendar, Twilio](https://millionrounds.com/workflow/time-spent-in-meetings-every-week-with-google-calendar)
- [**Send return pickup reminders with WhatsApp and Google Sheets** 7 steps · Google Sheets, Twilio](https://millionrounds.com/workflow/send-return-pickup-reminders-with-whatsapp-and-google-sheets)
- [**Get daily calendar summaries with SMS and Google Calendar** 8 steps · calls a model · Google Calendar, Twilio](https://millionrounds.com/workflow/get-daily-calendar-summaries-with-sms-and-google-calendar)
- [**Recover missed appointments with Google Calendar and Twilio** 9 steps · Gmail, Google Calendar](https://millionrounds.com/workflow/recover-missed-appointments-with-google-calendar-and-twilio)