Unable to log in with sandbox test users on device

Question

Trying to do some In App Purchase testing, so I created a sandbox tester on itunesconnect... but when I attempt to log in as that user on my device I get an error:

Answer 1

Must be a bug in their system. I am testing out subscriptions and I am able to add a 1-month sub / 7-day trial, and I get the same message when I try to view the account (so I can manage the subscriptions). Other times it will just show a regular subscription message (not showing the 7-day trial message).

I am however, still able to get this sandbox account subscribed and the app responds correctly.

These "Sandbox" account still need to be an actual working iTunes account with a credit card attached. I figured this was the reason I was seeing the error, but after setting up and verifying this test account, I still see the error.

I believe it to be a bug in their system as they start to implement the new subscription system. If anything, contact the Developer Tech support to see what they say, but they will never tell you its a "bug" in their system.

Answer 2

I had this problem as well, the simple solution was to sign out of my iTunes account on my physical device, restart it, clean the project and then build and run as normally. Only sign into your test iTunes account after the restart once the project is running. This issue may be caused by the way in which Apple handles or cashes users iTunes accounts on a device.