问题
"Your card was declined by the issuing bank. Try a different card or contact your card issuer with questions."
i couldnot proceed to paypal sandbox payment for testing . how can i resolve this issue?
回答1:
You can:
Go to Credit Card Generator and create a card for testing
Go to PayPal Developer - Accounts and create 'personal' account with a credit card
回答2:
There are two areas(Paypal and PayPal Checkout) in the Wordpress backend where you set the paypal environment to sandbox. I had set only one area. Because of this, I was unknowingly targeting the live PayPal environment.
来源：https://stackoverflow.com/questions/53223086/paypal-sandbox-is-not-working-for-testing-i-got-this-messege-again-and-again