贝宝测试信用卡不能在测试模式下工作

Question

I am using developing payment services in PayPal. I have the PayPal Manager account. I followed the documentation . But at the time of payment with credit card the test credit cards nor any credit cards from the sandbox accounts are working. Following message appears.

What are the possible solutions?

Answer 1

I ran into this issue with a project a few months back.
Check out this comment it may be of use.

Test credit card numbers for use with PayPal sandbox

Answer 2

As using PayPal Manager. Make sure following setting for test are sets

1. Login Manager Paypal
2. Go to Service Settings > Set up
3. Add Sandbox email
4. And make access token to Yes

After Login to developer account of PayPal then go to the profile of the sandbox that is attached to manager account. Upgrade your sandbox Account Type to Pro