As long as you know this persons. Unregistered users will never receive messages from the Gateway. A programmatic access via a WhatsApp API would be a fundamental requirement to create chatbots, support systems or other services which live.
The API can be used by any application written in any language as long as your application has access to. Before the recipient can receive your WhatsApp message, she will need to register with the WhatsMate WA Gateway. Chat API is designed to create chat bots and integrate WhatsApp with business systems: CRM, ERP or a website.
WhatsApp API - How to use the WhatsApp Chat WhatsApp is together with Facebook Messenger, WeChat, Line and Telegram one of the biggest messaging services. Instructions are available on the official site. WhatsApp FAQ - Using Click to Chat WhatsAppaposs Click to Chat feature allows you to begin a chat with someone without having their number saved in your aposs address book. Business API - m For medium and large businesses, the WhatsApp Business API powers your communication with customers all over the worl so you can connect with them on WhatsApp in a simple, secur.