PayPal Community

I have implemented paypal express on my website and everything was working fine. Since this morning when i click on the pay with paypal button i have this error: This transaction is invalid. Please return to the recipient's website to complete your transaction using their regular checkout flow. Is paypal express down or i need to change something in my code? Everything was working fine since yesterday. On sandbox everything works flawlessly like before.   I use the rest api on a php server to create the transaction and it works fine and the id is then returned to the js side of paypal express.   payment: function (data, actions) { return paypal.request.post(CREATE_PAYMENT_URL).then(function (data) { return data.id; }); }, Thank you all. ... View more

Hi , How can i handle different shipping methods based on country of the user?  With paypal express checkout i can access user informations only after they authorize the payment and then i can add shipping fees based on that and execute the payment. In sandbox this works but i found this really weird..  The user will authorize for example 100$ and then you withdraw 120$ because shipping to this country is 20$ without even him knowing that.  I tried an order in sandbox with 100000$ shipping fees not authorized by the user and the payment work. User-experience-wise i can at least show a review of the payment before executing the payment but i wonder if in production this kind of thing will work.  The other problem i have is to block payment to some nations.  If for example i don't want to ship to France can i just not execute the payment after the authorization of the user?  Is there some way to abort the payment?     ... View more