AI Restaurant Assistant n8n Workflow for WhatsApp & Messenger

Turn WhatsApp, Instagram, Messenger & delivery chats into a fully automated restaurant ordering experience

With the AI Restaurant Assistant n8n Workflow for WhatsApp & Messenger, your customers can browse your menu, get ZIP-code delivery availability, place an order, and receive a payment link—while your kitchen is notified automatically. Built with OpenAI GPT-4o for natural, friendly conversations, this n8n automation helps restaurants respond faster and sell more.

What this workflow does

• Replies automatically to customers via WhatsApp API, Instagram Direct, Messenger, and Evolution API.
• Sends your menu as images so food looks as great as it tastes.
• Checks ZIP codes to determine whether delivery is available using Google Maps.
• Collects item selections and supports upsells (like drinks or extras) during the ordering flow.
• Creates payment links with the Asaas API.
• Confirms payment completion and then sends the order to the kitchen.
• Stores messages and session data securely in Supabase.
• Uses OpenAI GPT-4o to chat naturally and kindly with customers.

Use cases

• A burger delivery business handling peak-hour questions about menu, delivery ZIP coverage, and order status.
• A restaurant team reducing manual WhatsApp and Messenger back-and-forth by automating ordering and payments.
• An automation engineer or SaaS operator deploying a ready-made AI ordering flow across multiple chat channels.

Technical details

• n8n automation workflow using nodes including if, set, code, and no op (with wait steps as needed).
• Integrations/requirements: WhatsApp API, Instagram Direct, Messenger, Evolution API, Google Maps, OpenAI GPT-4o, Asaas API, and Supabase.

Setup (guided)

Connect your webhook from your chosen channel and create a Supabase table named n8n_workflow_followup (template provided). This workflow is designed to be deployed with care—so your AI assistant can start helping customers right away.