You can use a phone number that is already registered with the WhatsApp Messenger or the What
So what is WhatsApp Business and how did it come about?
Want to connect with your customers using WhatsApp but don't know how to get WhatsApp API?
The WhatsApp Business App pricing model is simple - it’s free! But this is not the case
How to Use WhatsApp Business with Multiple Users: WhatsApp Business App or WhatsApp API?