I am developing Facebook chatbot using .NET Microsoft bot framework and there is a requirement that bot allows user to buy products online and it needs to be worldwide. I have checked Facebook documentation but it seems like the only option to integrate payment internationally is to use Custom Implementation in the Messenger Webview and open existing website that already has checkout process? but I have seen some chatbots eg. Hijiffy Hotel booking chatbot can do payment worldwide on messenger itself as picture below? How is it possible? I am quite new to this and maybe I have misunderstood.
Thanks a lot.
The screenshot appears to implement a custom payment flow in the webview. What you are likely seeing there is the webview opened with webview_height_ratio: 'tall'.
The Messenger webview opens external websites, but does so within the Messenger app, so to you end user the flow never actually leaves Messenger.
