> That might work for small businesses, but no real mid-sized or bigger company is going to be using Whatsapp or any other consumer messaging service for their

> That might work for small businesses, but no real mid-sized or bigger company is going to be using Whatsapp or any other consumer messaging service for their critical or non-critical business communications ...and yet WhatsApp Business exists to do exactly that. In developing countries, some businesses use WhatsApp as the only written-communication channel (supplemented via voice calls). For over a billion people, their smartphone is the primary - oftentimes only - computing platform. Business communication over WhatsApp is not as awkward as you suppose it is, and all businesses, including large ones, have to meet their clients on whatever platform(s) they happen to be on.