Why In-App purchase sandbox always ask “Verification Required”?

Question

I have signed out from the store in device settings. I entered user credentials only in my App. I have set up a brand new (actually around 4 times) test user.

Why th

Answer 1

I have struggled with this myself, i finally found a workaround that worked for me...

1. On the device Log out of iTunes account in settings (also hard close settings and iTunes if you have them open as a precaution)
2. Delete app
3. Create a new test user at “itunesconnect.apple.com” – selecting the United States as your store
4. Reinstall app
5. Try to make a purchase in the app
6. Enter you new test user account details
7. If a pop up states that it needs to swap stores, immediately press home. DO NOT press OK.
8. Relaunch the app, and try again. It should now work as expected.

Hope this works...