auto-renewable

I have integrated In App Purchase (Auto-Renewable subscription) in iOS & Android. Both are working fine. I have certain doubts about validating the IAP using cross platforms like: How multiple user when login in one app, how does the subscription for one particular works? (For Example, if user A has standard plan & after logout from the app. If user B logins in the same plan who has premium plan. How the iTunes will manages plan of IAP for particular user?) Also what if user's who has android device when switch to iOS, then how to validate the IAP from android to iOS or vice-versa? (Like

I have Auto-Renewable In-App Purchase item in my application which is in development stage. I could able to test the complete transaction till 2 days ago with different sandbox test accounts (+abc@def.com). From past couple of days when I am trying to test the transaction with new sandbox test accounts (+abc345@def.com), it is giving me an alert saying AppleID Verification - Open settings to continue signing with ******+abc345@def.com . I have already verified the account before trying to purchase. I have tried and tested with numerous new accounts I have created, getting the same alert

We are developing one iOS application for iPhone which will free features as well app will have premium features with 4 in app purchase auto-renewable subscription options as below: Single monthly subscription Single yearly subscription Family monthly subscription Family yearly subscription We will have one store screen inside the application which will have options to subscribe to various subscriptions which our app provides. We found that user can go to device settings and manage their In-app purchase subscriptions. We are also planning to provide options like user can upgrade from one