Maybe all of us use Whatsapp as a communication medium, whether by message or telephone, but we often receive promotional messages, especially from the numbers of people we know in our environment, whether it's just offering snacks, clothes, shoes, etc. So you as a businessman can also promote via Whatsapp, besides that, you will build friendships with friends and customers of your business. As far as I know, business people on Whatsapp use business accounts, and have a special number for their business Whatsapp. Of course there are many other methods that must be implemented to successfully sell on Whatsapp, what do you think?