# AI-powered restaurant order and menu management with WhatsApp: n8n workflow

> Started by an incoming WhatsApp message, and works across Supabase, Supabase vectors and WhatsApp.

Source: https://millionrounds.com/workflow/ai-powered-restaurant-order-and-menu-management-with-whatsap (Millionrounds; every figure on the page links to its filing or article)

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

# AI-powered restaurant order and menu management with WhatsApp

Started by an incoming WhatsApp message, and works across Supabase, Supabase vectors and WhatsApp. It puts Gemini behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 18 steps, 2 branches: a working afternoon to understand properly.

Medium Calls a model: Gemini Retrieval

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fai-powered-restaurant-order-and-menu-management-with-whatsap)

**18 steps** Medium: a working afternoon

**2** Branches: places the flow splits

**0** Loops or waits

**3** Services it connects to

## The flow

Starts it 2 Model 9 Logic 2 Service 5

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

- 1 **WhatsApp Trigger** Whats App trigger *Starts it*
- 2 **Simple Memory** Memory Buffer Window *Model*
- 3 **Create order in database** Supabase Tool *Service*
- 4 **Add menu item** Form trigger *Starts it*
- 5 **Default Data Loader** Document Default Data Loader *Model*
- 6 **Google Gemini Chat Model** Lm Chat Google Gemini *Model*
- 7 **Embeddings Google Gemini** Embeddings Google Gemini *Model*
- 8 **Google Gemini Chat Model1** Lm Chat Google Gemini *Model*
- 9 **Get user** Supabase *Service*
- 10 **AI Agent** Agent *Model*
- 11 **Insert Menu Item to Vector Store** Vector Store Supabase *Model*
- 12 **Get Menu Items from Vector Store** Vector Store Supabase *Model*
- 13 **Structured Output Parser** Output Parser Structured *Model*
- 14 **Check if user exists** If *Logic*
- 15 **Send last message** Whats App *Service*
- 16 **Add user to db** Supabase *Service*
- 17 **If** If *Logic*
- 18 **Send Order to delevery guy** Whats App *Service*

## How it's built

- **Starts on:** An incoming WhatsApp message
- **Steps:** 18, with 2 branches
- **Size:** Medium: a working afternoon
- **Connects to:** Supabase, Supabase vectors, WhatsApp
- **Model:** Gemini
- **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 Supabase, Supabase vectors and WhatsApp accounts, and a key for Gemini. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an incoming WhatsApp message.

Does it use AI?

Yes. It calls Gemini. 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?

Plan an afternoon. 18 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 18 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%2Fai-powered-restaurant-order-and-menu-management-with-whatsap)
- **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.

[Supabase](https://millionrounds.com/workflows?service=Supabase#library)[Supabase vectors](https://millionrounds.com/workflows?service=Supabase+vectors#library)[WhatsApp](https://millionrounds.com/workflows?service=WhatsApp#library)

## Workflows like it

Also e-commerce, with the same services where possible, closest in size first.

- [**Automate WhatsApp orders & inventory with Gemini** 16 steps · calls a model · Google Sheets, WhatsApp](https://millionrounds.com/workflow/automate-whatsapp-orders-and-inventory-with-gemini)
- [**AI agent for facebook l get order email alert with OpenAI** 15 steps · calls a model · Gmail, Supabase vectors](https://millionrounds.com/workflow/ai-agent-for-facebook-l-get-order-email-alert-with-openai)
- [**AI-powered WhatsApp customer support for Shopify brands** 22 steps · calls a model · Slack, WhatsApp](https://millionrounds.com/workflow/ai-powered-whatsapp-customer-support-for-shopify-brands)
- [**Confirm and log WhatsApp restaurant orders with Groq** 14 steps · calls a model · Google Sheets, WhatsApp](https://millionrounds.com/workflow/confirm-and-log-whatsapp-restaurant-orders-with-groq)
- [**Monitor WooCommerce inventory daily and send Slack alerts** 14 steps · Slack, Supabase](https://millionrounds.com/workflow/monitor-woocommerce-inventory-daily-and-send-slack-alerts)
- [**WhatsApp restaurant ordering bot with Gemini and OpenAI** 13 steps · calls a model · Google Sheets, WhatsApp](https://millionrounds.com/workflow/whatsapp-restaurant-ordering-bot-with-gemini-and-openai)