How to publish a game in Microsoft Store which is based upon Subscription modal handle through web application?

Question

I have developed a game in Unreal. The player needs to sign up on our game through web application from where they can select different subscription.
On the basis of subscription, we provide different features of the game.
I am trying to publish my game in Microsoft store by uploading MSIX package.
I am getting "The product enables in-app purchase of digital goods or services but does not use the Microsoft Store in-product purchase API. Products available on Xbox consoles and games available on any platform must use the Microsoft Store in-product purchase API."
error message.

Since, everything is handled on my web application, how can i submit my game to Microsoft store?

Answer 1

Unfortunately, Microsoft Store has strict policies regarding in-app purchases (IAP) for games. Their system requires using the Microsoft Store in-product purchase API for any IAP functionality, even for games on PC. This makes it difficult to directly submit your Unreal game with a web-based subscription system to the Microsoft Store.

Make an in-app purchase in Microsoft Store