The WhatsApp Business solution is best suited for enterprise business use cases like customer service or time-sensitive notifications like appointment reminders, delivery notifications, and order status updates.
Independent software vendors
Real cash gaming (gambling)
Alcohol/tobacco/drug related products - including pharmaceuticals
Health care products/supplements
Other categories not conforming to WhatsApp or Facebook's commerce and community standards
NB: Marketing and promotional messages are not permitted on the WhatsApp Business API.