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Case 03 · f&b · whatsapp business api

Three workflows. Zero manual order entry.

A restaurant was taking orders over WhatsApp and typing each one into a sheet by hand. We rebuilt the entire order journey as three connected n8n workflows. Intake captures the message and creates a unique Order ID. An AI validation step checks the order against the menu — catching typos, unclear items and incomplete orders before they reach the kitchen — then logs everything to Google Sheets and alerts the manager. The fulfilment workflow sends the customer a confirmation, tracks delivery status, and fires an automated review request once the order is complete. Nothing is entered twice, nothing slips through.

What we built

  • Workflow 1 — intake: WhatsApp Business API capture, unique Order ID generation
  • Workflow 2 — validation: AI menu-matching, Sheets logging, manager alerts
  • Workflow 3 — fulfilment: customer confirmation, delivery tracking, review requests
  • Guardrails for ambiguous or incomplete orders (clarify-before-kitchen logic)
  • Every order logged, traceable and time-stamped

3 workflows

one order journey

Every order

logged & tracked

Fully automated

review requests

Stack

n8nWhatsApp Business APIClaudeGoogle Sheets

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