# Create a WhatsApp customer support bot with OpenAI: n8n workflow

> Started by an event in a connected app, and works across Gmail, Google Calendar, Supabase vectors and Twilio.

Source: https://millionrounds.com/workflow/create-a-whatsapp-customer-support-bot-with-openai (Millionrounds; every figure on the page links to its filing or article)

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

# Create a WhatsApp customer support bot with OpenAI

Started by an event in a connected app, and works across Gmail, Google Calendar, Supabase vectors and Twilio. It puts OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 23 steps: large, and worth reading before you trust it with anything live.

Large Calls a model: OpenAI Retrieval

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fcreate-a-whatsapp-customer-support-bot-with-openai)

**23 steps** Large: read it before trusting it with anything live

**0** Branches: places the flow splits

**0** Loops or waits

**4** Services it connects to

## The flow

Starts it 2 Model 14 Logic 1 Service 6

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

- 1 **When Executed by Another Workflow** Execute Workflow trigger *Starts it*
- 2 **OpenAI Chat Model** Lm Chat Open Ai *Model*
- 3 **Get many events in Google Calendar** Google Calendar Tool *Service*
- 4 **Create an event in Google Calendar** Google Calendar Tool *Service*
- 5 **Delete an event in Google Calendar** Google Calendar Tool *Service*
- 6 **Create an event in Google Calendar1** Google Calendar Tool *Service*
- 7 **Calendar Tool** Tool Workflow *Model*
- 8 **Knowledge Base Tool** Tool Workflow *Model*
- 9 **Email Tool** Tool Workflow *Model*
- 10 **OpenAI Chat Model1** Lm Chat Open Ai *Model*
- 11 **Embeddings OpenAI** Embeddings Open Ai *Model*
- 12 **OpenAI Chat Model2** Lm Chat Open Ai *Model*
- 13 **Send a message in Gmail** Gmail Tool *Service*
- 14 **OpenAI Chat Model3** Lm Chat Open Ai *Model*
- 15 **Conversation Memory (Postgres)** Memory Postgres Chat *Model*
- 16 **Incoming WhatsApp Message** Twilio trigger *Starts it*
- 17 **Calendar Agent** Agent *Model*
- 18 **WhatsApp AI Support Agent** Agent *Model*
- 19 **Supabase Vector Store** Vector Store Supabase *Model*
- 20 **Knowledge Base Agent** Agent *Model*
- 21 **Email Agent** Agent *Model*
- 22 **Format Incoming Message** Set *Logic*
- 23 **Send WhatsApp Reply** Twilio *Service*

## How it's built

- **Starts on:** An event in a connected app
- **Steps:** 23
- **Size:** Large: read it before trusting it with anything live
- **Connects to:** Gmail, Google Calendar, Supabase vectors, Twilio
- **Model:** OpenAI
- **Retrieval:** Answers are drawn from documents you supply, not from the model alone

## Questions

What does it need to run?

An n8n account, plus your own Gmail, Google Calendar, Supabase vectors and Twilio accounts, and a key for 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 OpenAI. Its answers draw on documents you give it, not on the model alone. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Take your time. At 23 steps it is large: read it before trusting it with anything live.

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 23 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%2Fcreate-a-whatsapp-customer-support-bot-with-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.

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

## Workflows like it

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

- [**AI email support system: Gmail, Gemini, GPT-4, Slack & Google** 23 steps · calls a model · Gmail, Google Drive](https://millionrounds.com/workflow/ai-email-support-system-gmail-gemini-gpt-4-slack-and-google)
- [**Draft grounded Gmail support replies from a Notion KB** 23 steps · calls a model · Gmail, Notion](https://millionrounds.com/workflow/draft-grounded-gmail-support-replies-from-a-notion-kb)
- [**Route and triage multi-channel support tickets with OpenAI** 23 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/route-and-triage-multi-channel-support-tickets-with-openai)
- [**AI WhatsApp support with Gemini and Twilio** 22 steps · calls a model · Airtable, Google Drive](https://millionrounds.com/workflow/ai-whatsapp-support-with-gemini-and-twilio)
- [**Route WhatsApp customer support with Gemini and Google Sheets** 22 steps · calls a model · Google Calendar, Google Sheets](https://millionrounds.com/workflow/route-whatsapp-customer-support-with-gemini-and-google-sheet)
- [**SEO FAQ generator for websites with Google Sheets** 24 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/seo-faq-generator-for-websites-with-google-sheets)