The WhatsApp Business API is perfect for businesses which have the capability to programmatically send and receive messages and integrate this workflow with their own systems. Your business must have the technical resources available and must be quick-moving and scalable.
The criteria for eligibility is determined by WhatsApp and include specific use cases, messaging volumes per day, target market, and overall reach. Businesses wanting to apply to use the WhatsApp Business API will need to have a track record of high messaging volumes per day and clearly defined use cases.
Measurable business goals such as customer engagement, loyalty, and retention need to be demonstrated as well as an existing heavy usage of SMS and other direct marketing channels. Businesses with an existing Facebook relationship and spend history will also be given preference.
The following restricted classes of businesses exist including gambling, adult content, alcohol, tobacco or drug-related products, weapons, health care products/supplements, and other categories not conforming to WhatsApp or Facebook's commerce and community standards. Marketing and promotional messages are also not permitted via the WhatsApp Business API.