WhatsApp is a messaging app owned by Facebook. It allows users to send text messages, photos, videos, audio files, location information, contact lists, and links to websites. The service is free to use, but some features require payment. And, one of the things is WhatsApp API Service for sent message to the users from a business POV.

The WhatsApp Business Platform helps businesses connect with their customers through messaging apps like WhatsApp, Facebook Messenger, and Telegram. It allows companies to send messages directly to their customers, which makes it easy for them to stay connected and build relationships. It includes features like notifications, appointments, and promotions. The WhatsApp API service provide companies share important updates with their customers, like when orders ship or if there are any changes to their account.