Are you aware of WhatsApp Business API? If you are aware of WhatsApp Business API, you may very well know that businesses have to get approved for all of their template messages directly from WhatsApp. For more than 3 years, these message templates can be sent only after a user opts-in for updates. Also, message templates should include only transactional messages, delivery messages, and messages that can be categorized as an ‘update’. That was to ensure that businesses can not spam unnecessary notifications and provide complete personalized communication with their customers on WhatsApp.