# Manage Google Calendar events with Zalo Bot and OpenAI: n8n workflow

> Started by an event in a connected app, and works across Google Calendar. It hands the judgement calls to Gemini and OpenAI.

Source: https://millionrounds.com/workflow/manage-google-calendar-events-with-zalo-bot-and-openai (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)

# Manage Google Calendar events with Zalo Bot and OpenAI

Started by an event in a connected app, and works across Google Calendar. It hands the judgement calls to Gemini and OpenAI. 13 steps, 1 branch: a working afternoon to understand properly.

Medium Calls a model: Gemini, OpenAI

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fmanage-google-calendar-events-with-zalo-bot-and-openai)

**13 steps** Medium: a working afternoon

**1** Branch: places the flow splits

**0** Loops or waits

**1** Service it connects to

## The flow

Starts it 1 Model 3 Logic 2 Service 7

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

- 1 **Delete event** Google Calendar Tool *Service*
- 2 **Get events** Google Calendar Tool *Service*
- 3 **Create Event** Google Calendar Tool *Service*
- 4 **Update Event** Google Calendar Tool *Service*
- 5 **OpenAI Chat Model** Lm Chat Open Ai *Model*
- 6 **Start** Zalo Bot trigger *Starts it*
- 7 **Calendar Manage** Agent *Model*
- 8 **Context** Set *Logic*
- 9 **Send a text message** Zalo Bot *Service*
- 10 **Send a text message1** Zalo Bot *Service*
- 11 **If Message is Voice** If *Logic*
- 12 **Send a chat action** Zalo Bot *Service*
- 13 **Transcribe a recording** Google Gemini *Model*

## How it's built

- **Starts on:** An event in a connected app
- **Steps:** 13, with 1 branch
- **Size:** Medium: a working afternoon
- **Connects to:** Google Calendar
- **Model:** Gemini, OpenAI

## Questions

What does it need to run?

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

What starts it?

It starts on an event in a connected app.

Does it use AI?

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

How long does it take to set up?

Plan an afternoon. 13 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 13 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%2Fmanage-google-calendar-events-with-zalo-bot-and-openai)
- **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.

[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 appointment booking & classification chatbot with OpenAI** 13 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/ai-appointment-booking-and-classification-chatbot-with-opena)
- [**AI-powered calendar & meeting digest with Gmail** 13 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/ai-powered-calendar-and-meeting-digest-with-gmail)
- [**Automate employee leave approvals with OpenAI and Gmail** 13 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/automate-employee-leave-approvals-with-openai-and-gmail)
- [**Cybersecurity assistant with OpenAI and Telegram** 13 steps · calls a model · Google Calendar, Telegram](https://millionrounds.com/workflow/cybersecurity-assistant-with-openai-and-telegram)
- [**Demo Telegram Voice and Chat AI Assistant with OpenAI** 13 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/demo-telegram-voice-and-chat-ai-assistant-with-openai)
- [**Handle Tol Product Lab sales chats with Telegram and Gemini** 13 steps · calls a model · Google Calendar, Google Sheets](https://millionrounds.com/workflow/handle-tol-product-lab-sales-chats-with-telegram-and-gemini)