Hello,
Is there currently any way to test grace period handling in sandbox? According to the Apple documentation, this appears to have been enabled in iOS 16: https://developer.apple.com/documentation/storekit/in-app_purchase/testing_in-app_purchases_with_sandbox/testing_failing_subscription_renewals_and_in-app_purchases
However, there is a known bug in iOS 16 in which sandbox users are unable to log in, so the flow described there does not seem reachable? In iOS 15, which is the version we're using to manage subscriptions, I see no option to simulate this.
Is there a proper way to test grace periods?