StoreKit in Xcode 8 and iOS 10 not working
<p>I am using XCode version 2345.1 and I have a device with iOS 10.0.1. The app was working with in-app purchases in iOS 9, now I cannot perform that functionality. </p>

<p>On debugging, I got 'SKErrorUnknown' in one device whilst in another I got 'SKErrorClientInvalid'. The second one is because the account i am using to buy is for US store while the app is of Indian store.</p>

<p>When I change the store in App Store, following is shown :- 
<a href="https://i.stack.imgur.com/rIZZi.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/rIZZi.png" alt="enter image description here"></a>
<a href="https://i.stack.imgur.com/mpcV4.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mpcV4.png" alt="enter image description here"></a></p>