# WhatsApp restaurant ordering bot with Gemini and OpenAI: n8n workflow

> Started by an incoming WhatsApp message, and works across Google Sheets and WhatsApp. It puts Gemini and OpenAI behind a retrieval step, so answers are...

Source: https://millionrounds.com/workflow/whatsapp-restaurant-ordering-bot-with-gemini-and-openai (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)

# WhatsApp restaurant ordering bot with Gemini and OpenAI

Started by an incoming WhatsApp message, and works across Google Sheets and WhatsApp. It puts Gemini and OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 13 steps, 1 branch: a working afternoon to understand properly.

Medium Calls a model: Gemini, OpenAI Retrieval

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fwhatsapp-restaurant-ordering-bot-with-gemini-and-openai)

**13 steps** Medium: a working afternoon

**1** Branch: places the flow splits

**0** Loops or waits

**2** Services it connects to

## The flow

Starts it 1 Model 4 Logic 1 Service 7

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

- 1 **1. WhatsApp Trigger** Whats App trigger *Starts it*
- 2 **OpenAI Chat Model** Lm Chat Open Ai *Model*
- 3 **Google Gemini (Alternative)** Lm Chat Google Gemini *Model*
- 4 **Conversation Memory** Memory Buffer Window *Model*
- 5 **FAQ Tool** Google Sheets Tool *Service*
- 6 **Inventory Tool** Google Sheets Tool *Service*
- 7 **Orders Tool** Google Sheets Tool *Service*
- 8 **2. AI Agent (Core Logic)** Agent *Model*
- 9 **3. Check Response** If *Logic*
- 10 **4. Send Response** Whats App *Service*
- 11 **6. Notify Owner (Optional)** Whats App *Service*
- 12 **5. Send Error Message** Whats App *Service*
- 13 **7. Log Analytics (Optional)** Http Request *Service*

## How it's built

- **Starts on:** An incoming WhatsApp message
- **Steps:** 13, with 1 branch
- **Size:** Medium: a working afternoon
- **Connects to:** Google Sheets, WhatsApp
- **Model:** Gemini, 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 Google Sheets and WhatsApp accounts, 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 incoming WhatsApp message.

Does it use AI?

Yes. It calls Gemini and 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?

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%2Fwhatsapp-restaurant-ordering-bot-with-gemini-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 Sheets](https://millionrounds.com/workflows?service=Google+Sheets#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.

- [**Convert Shopify products into Blog content with DeepSeek** 13 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/convert-shopify-products-into-blog-content-with-deepseek)
- [**Extract ecommerce products to Google Sheets with Snapshot Site** 13 steps · calls a model · Google Sheets](https://millionrounds.com/workflow/extract-ecommerce-products-to-google-sheets-with-snapshot-si)
- [**Modular & customizable AI-powered email routing: text classifier** 13 steps · calls a model · Email, Google Sheets](https://millionrounds.com/workflow/modular-and-customizable-ai-powered-email-routing-text-class)
- [**Summarize daily Shopify orders with Gemini and Google Sheets** 13 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/summarize-daily-shopify-orders-with-gemini-and-google-sheets)
- [**AI virtual TryOn generation for WooCommerce clothing catalog** 13 steps · Google Drive, Google Sheets](https://millionrounds.com/workflow/ai-virtual-tryon-generation-for-woocommerce-clothing-catalog)
- [**Auto-generate virtual AI try-on images for WooCommerce** 13 steps · Google Drive, Google Sheets](https://millionrounds.com/workflow/auto-generate-virtual-ai-try-on-images-for-woocommerce)