Today reaching our to prospective customers and users across social media channels is a must have in the marketing arsenal.
Usually people with jump on the ideas of marketing via Facebook, LinkedIn in Business to Business, Google Ads etc. These are great but quite often What's App is overlooked in that list.
What everyone seeks is direct contact with the 'buyer' so close down a sales and deliver a great service to the new customer.
One 'channel' that you should give some consideration to is WhatsApp with its over 2 billion users.