Paypal error Product amount must be added before the specified subtotal amount

Question

I am using the PayPal REST API from my .Net MVC 4 Razor website.

When creating the payment, I followed the following request and response through the violinist:

Can anyone explain the cause of the error? The total amount of transactions and the price of goods are 0.24, so I can not understand why the error.

Answer 1

Please set the price on points as 0.12. You send 2 items for a total of 0.24, so it should be 0.24 / 2 = 0.12. Assuming the unit price is 0.12, you correctly set the total to 0.24