WhatsApp Bot Builder

Overview

Builds WhatsApp bots using the official Cloud API (hosted by Meta). Covers account setup, webhook configuration, sending and receiving messages, template messages for outbound campaigns, interactive components (buttons, lists, flows), media handling, and production deployment. Does NOT use unofficial libraries — only the official WhatsApp Business Platform.

Instructions

1. Account Setup

1. Create a Meta Business account at https://business.facebook.com
2. Go to https://developers.facebook.com → Create App → Business type
3. Add "WhatsApp" product to the app
4. In WhatsApp > Getting Started:
   • Note the Phone Number ID and WhatsApp Business Account ID
   • Generate a temporary access token (valid 24h) or create a System User token (permanent)
5. Add a test phone number or verify your business number

Required credentials: