We just started getting this message when trying to test our subscriptions with our TestFlight build. After clicking the OK button, we get a mainly blank screen that says “Cannot Connect”. We’re concerned that this will happen to our users if we release this build. We’re using the latest Unity In App Purchase package (4.1.3). Our current release seems to still be working normally.
We would have no control over it. However, I suspect it will be a short-lived issue on the Apple servers. To ensure it’s not developer related, make sure to log into your Apple dashboard and ensure there are no updated terms and conditions waiting for your approval.