Last year, WhatsApp rolled out it's WhatsApp Business app, which enables business users to "interact with customers easily by using tools to automate, sort, and quickly respond to messages". A year on, and WhatsApp says that there are now more than 5 million businesses using the app.

The expansion will make it easier for more businesses to utilize the app's business tools within their regular social customer service flow, which may lead to more brands adding WhatsApp to their communication options.