I just want to add a in-app purchase project to my app,
steps:
1.i create a product in App Store Connect ,the product id is "com.buy.once.me"
2.in Xcode,i create " SubscriptionStoreView(productIDs:["com.buy.once.me"])" in a view
3. the view show "subscription unavailable the subscription is unavailable in the current storefront"
I don't know what the problem is ,anyone help me,thanks