PayPal REST API .net SDK - 400 Bad Requests

Question

I\'m working in the sandbox and using the PayPal REST .net SDK method Payment.Create with a CreditCard object. When all parameters are valid and using the test CC number from h

Answer 1

This seems to have changed, and while many of these answers point in the right direction, none of them worked exactly for me. This is my equivalent of the currently most upvoted answer:

catch (PayPal.PaymentsException ex)
{
    context.Response.Write(ex.Response);
}

with the response:

{"name":"VALIDATION_ERROR","details":[{"field":"start_date","issue":"Agreement start date is required, should be valid and greater than the current date. Should be consistent with ISO 8601 Format"}],"message":"Invalid request. See details.","information_link":"https://developer.paypal.com/docs/api/payments.billing-agreements#errors","debug_id":"8c56c13fccd49"}