WhatsApp Business API: A Complete Developer Guide

The WhatsApp Business API allows backends to programmatically send and receive messages, including OTPs, order updates, and support replies, bypassing manual typing. While the WhatsApp Business app serves small businesses for manual replies, the WhatsApp Business Platform, or WhatsApp Business API, is designed for software. Systems communicate via HTTPS, and Meta hosts the Cloud API. This infrastructure enables servers to receive replies and delivery updates, allowing developers to design full integrations before writing any code.