问题 I have following the steps described in this link to perform a sandbox testing. But I was failed to use the sandbox tester that I have created in iTunesConnect. When I tried to login using the tester account in App Store on an iPhone, it prompts the following error. I have verified the apple ID but it still failed. How to resolve it? By the way, is it possible to add a test card to a real apple ID for testing? 回答1: The Apple Pay Sandbox account is not for signing into iTunes, but to iCloud.