When purchasing ios iap, you are always prompted to continue the solution.

========================================================== =============================== Original blog, reprinted please declare the source of Electronic coffee (original id blue rock) ========================================================== ================================

After clicking buy, the confirm purchase dialog box is displayed. Do you want to buy a XXX at the price of XXX?
[Environment: Sandbox]
Cancel purchase
Click confirm to purchase, and the pop-up "need to verify light" continue to log on "will pop up, then check and confirm the change ."

Click "continue" and enter the password. Switch to the appstore interface. There is only one dialog box with the content "[environment: Sandbox]". Click "continue", enter the password, and repeat this interface. If you click Continue, repeat it all the time. Click Cancel. The purchase will fail.

Solution:

In the manage test users in iTunes connect, add a new test user, log out of the app store on the iPhone, and use the new account again.