# Class scheduling & reminders with Google Calendar and SMS: n8n workflow

> Started by a clock, and works across Excel and Google Calendar. 14 steps, 2 branches, 1 loop or waits: a working afternoon to understand properly.

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

[Automation library](https://millionrounds.com/workflows) · [Alerts and monitoring](https://millionrounds.com/workflows?category=Alerts+and+monitoring#library)

# Class scheduling & reminders with Google Calendar and SMS

Started by a clock, and works across Excel and Google Calendar. 14 steps, 2 branches, 1 loop or waits: a working afternoon to understand properly.

Medium

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fclass-scheduling-and-reminders-with-google-calendar-and-sms)

**14 steps** Medium: a working afternoon

**2** Branches: places the flow splits

**1** Loop or waits

**2** Services it connects to

## The flow

Starts it 1 Logic 8 Service 5

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

- 1 **Daily Schedule Check** Cron *Starts it*
- 2 **Read Class Schedule** Microsoft Excel *Service*
- 3 **Filter Today's Classes** Code *Logic*
- 4 **Has Classes Today?** If *Logic*
- 5 **Sync to Google Calendar** Google Calendar *Service*
- 6 **Read Student Contacts** Microsoft Excel *Service*
- 7 **Create Student Reminders** Code *Logic*
- 8 **Split Into Batches** Split In Batches *Logic*
- 9 **Email or SMS?** If *Logic*
- 10 **Prepare Email Reminders** Code *Logic*
- 11 **Prepare SMS Reminders** Code *Logic*
- 12 **Read Reminder Log** Microsoft Excel *Service*
- 13 **Update Reminder Log** Code *Logic*
- 14 **Save Reminder Log** Microsoft Excel *Service*

## How it's built

- **Starts on:** A clock
- **Steps:** 14, with 2 branches, 1 loop or waits
- **Size:** Medium: a working afternoon
- **Connects to:** Excel, Google Calendar
- **Model:** None. This is plumbing, not judgement

## Questions

What does it need to run?

An n8n account, plus your own Excel and Google Calendar accounts. You connect your own accounts after importing it; none are included.

What starts it?

It starts on a clock.

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?

Plan an afternoon. 14 steps is enough that you should read each one before running it.

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 14 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%2Fclass-scheduling-and-reminders-with-google-calendar-and-sms)
- **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.

[Excel](https://millionrounds.com/workflows?service=Excel#library)[Google Calendar](https://millionrounds.com/workflows?service=Google+Calendar#library)

## Workflows like it

Also alerts and monitoring, with the same services where possible, closest in size first.

- [**Automate dental appointments with Google Calendar** 14 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/automate-dental-appointments-with-google-calendar)
- [**Sync check due dates from Google Sheets to Google Calendar** 15 steps · Google Calendar, Google Sheets](https://millionrounds.com/workflow/sync-check-due-dates-from-google-sheets-to-google-calendar)
- [**Travel itinerary reminders with Google Calendar and Excel** 15 steps · Excel, Google Calendar](https://millionrounds.com/workflow/travel-itinerary-reminders-with-google-calendar-and-excel)
- [**Monthly Attendance Sheet Auto-Generation and Email Notification** 12 steps · Excel, Gmail](https://millionrounds.com/workflow/monthly-attendance-sheet-auto-generation-and-email-notificat)
- [**Auto-generate sales insights from Sheets with Gemini** 12 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/auto-generate-sales-insights-from-sheets-with-gemini)
- [**Gap-time cafe finder with OpenRouter AI and Google Calendar** 12 steps · calls a model · Google Calendar, Google Sheets](https://millionrounds.com/workflow/gap-time-cafe-finder-with-openrouter-ai-and-google-calendar)