I am running a social media campaign which lets interested people land on WhatsApp.
Campaign Details:
I have added WhatsApp quick text link with pre-typed opening message. When anyone clicks on promotional post he/she gets directed to my business WhatsApp with pre-typed message.
Problem:
It is time consuming process to save each clients number on phone, ask them to save my contact in their phone and then add them to broadcast list.
Solution Requirement:
I want to build a WhatsApp API.
I should be able to gain subscribers through campaign, if they click on promotional link they should be asked to enter phone number and OTP received to their number. If someone follows the process he/she would be added to subscribers list and then i can broadcast messages to them.