i'm using NVP API and calling SetExpressCheckout, sending SHIPTOCOUNTRYCODE with the value US or any other country code and still when payment page appears the country is Great Britain....
I believe you are using an old API version because
SHIPTOCOUNTRY is deprecated (since version 63). You should use PAYMENTREQUEST_n_SHIPTOCOUNTRYCODE instead.
I believe you are using an old API version because SHIPTOCOUNTRY is deprecated (since version 63). You should use PAYMENTREQUEST_n_SHIPTOCOUNTRYCODE instead.
More information here: https://developer.paypal.com/docs/classic/api/merchant/SetExpressCheckout_API_Operation_NVP/