I run an ecommerce store on opencart, I want to use whatsapp business api to send my customers details about their order:
1. Order Successfully placed
2. Order shipped
3. Order delivered
4. Promotional messages
How can all these be achieved? I do not have Whatsapp API, you need to obtain from third party or other ways & figure everything out. Reply with "human" so that i know you've read my requirement.