We are working on app with an auto-renewing subscription. We have tested it extensively with sandbox and TestFlight accounts. An issue that we have noticed throughout is that we commonly get a popup - or multiple popups in a row - that say: "Sign-In Required" "Tap Continue and sign in to check for downloads. [Enviroment: Sandbox]".
It seems to be related to having an Apple ID logged in in Settings->iTunes & App Store when launching the app but that will be true 99% of the time in the live app.
We need to confim that this issue will not happen once the app goes live in the App Store. Has anyone else had this issue? Did it exist in the production app?
Thanks!