Why is opt-in required to send notifications? Kauntal Patel February 23, 2020 07:59 Whatsapp mandates that you must get a voluntary consent from your user to send them template notifications. Related articles How can I manage my opted in users using Gupshup? How can I get more optins? What are the different kinds of users states? How can I get more users to engage with them on WhatsApp? What are the mechanisms? Will they be opted-in too? What is a FB Business Manager ID and where do I find it from? Can a user be Opt-in and Opt-out via API? Comments 0 comments Please sign in to leave a comment.