# Automatic reminders for follow-ups with OpenAI and Gmail: n8n workflow

> Started by a clock, and works across Gmail and Google Calendar. It hands the judgement calls to OpenAI.

Source: https://millionrounds.com/workflow/automatic-reminders-for-follow-ups-with-openai-and-gmail (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)

# Automatic reminders for follow-ups with OpenAI and Gmail

Started by a clock, and works across Gmail and Google Calendar. It hands the judgement calls to OpenAI. 16 steps, 1 loop or waits: a working afternoon to understand properly.

Medium Calls a model: OpenAI

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fautomatic-reminders-for-follow-ups-with-openai-and-gmail)

**16 steps** Medium: a working afternoon

**0** Branches: places the flow splits

**1** Loop or waits

**2** Services it connects to

## The flow

Starts it 1 Model 5 Logic 5 Service 5

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

- 1 **Schedule Trigger** Schedule trigger *Starts it*
- 2 **Output** Output Parser Structured *Model*
- 3 **Availability** Google Calendar Tool *Service*
- 4 **Model** Lm Chat Open Ai *Model*
- 5 **Meetings** Google Calendar Tool *Service*
- 6 **Model1** Lm Chat Open Ai *Model*
- 7 **Get Past Events** Google Calendar *Service*
- 8 **Meeting Availability Agent** Agent *Model*
- 9 **Meeting Booking Agent** Agent *Model*
- 10 **Mark as Seen** Remove Duplicates *Logic*
- 11 **Generate Message** Set *Logic*
- 12 **Loop Over Items** Split In Batches *Logic*
- 13 **Send for Human Approval** Gmail *Service*
- 14 **Only Follow Ups** Filter *Logic*
- 15 **Get Emails Since** Gmail *Service*
- 16 **Flag to Follow Up** Set *Logic*

## How it's built

- **Starts on:** A clock
- **Steps:** 16, 1 loop or waits
- **Size:** Medium: a working afternoon
- **Connects to:** Gmail, Google Calendar
- **Model:** OpenAI

## Questions

What does it need to run?

An n8n account, plus your own Gmail and Google Calendar accounts, and a key for OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on a clock.

Does it use AI?

Yes. It calls OpenAI. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 16 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 16 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%2Fautomatic-reminders-for-follow-ups-with-openai-and-gmail)
- **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.

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

## Workflows like it

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

- [**AI calendar assistant with Google Chat** 16 steps · calls a model · Google Calendar](https://millionrounds.com/workflow/ai-calendar-assistant-with-google-chat)
- [**AI-optimized travel itinerary generator with Skyscanner** 16 steps · calls a model · Gmail, Slack](https://millionrounds.com/workflow/ai-optimized-travel-itinerary-generator-with-skyscanner)
- [**AI-powered salon booking with OpenAI and Google Calendar** 16 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/ai-powered-salon-booking-with-openai-and-google-calendar)
- [**Analyze Google Calendar patterns with OpenAI** 16 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/analyze-google-calendar-patterns-with-openai)
- [**Generate consulting KPI summaries with OpenAI and Slack** 16 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/generate-consulting-kpi-summaries-with-openai-and-slack)
- [**Handle WhatsApp sales inquiries with OpenAI and Pinecone** 16 steps · calls a model · Google Calendar, Pinecone](https://millionrounds.com/workflow/handle-whatsapp-sales-inquiries-with-openai-and-pinecone)