CheckOut with PayPal buttom not working
I have set up everything and I try now to test using the sandbox from PayPal where I have set up an account. I copied the API user name, password and signature.
1) When I now press to the PayPal checkout buttom the transaction start immediately without going to the pp_confirm.php page
2) When I proceed the normal way and enter credit card numbers then I always get checkout failed. I have no idea to debug this