!!!! This is a strange scenario so please read my question carefully before you answer it, so that you don't waste your time and mine. Thanks! !!!!
Hi,
I am very new to PayPal developer.
I added PayPal API to my website, so that customers can pay subscriptions into my PayPal sandbox account.
When I pretend to be a customer and used my real credit card to pay for the subscription, it worked. However, when I chose to use my real person PayPal account, I simply could not log into my personal PayPal account. The error message was "Check your entries and try again." If I open a browser separately, I can login.
Why?
