Paypal credit card payments integration problem

I got problem when I submit credit card information to paypal, I开发者_JAVA百科t'll give me error like "There’s an error with this transaction. Please enter a country in the billing address." Though I send "COUNTRY" parameters in NVP string. Below is my NVP string.

Can anyone help me Please ? Thanks in advance.

$nvpstr="&PAYMENTACTION=Sale&IPADDRESS=$ip&AMT=$amount&CREDITCARDTYPE=$creditCardType&
ACCT=$creditCardNumber&EXPDATE=".$padDateMonth.$expDateYear."&CVV2=$cvv2Number&
FIRSTNAME=$firstName&LASTNAME=$lastName&STREET=$address1&STREET2=$address2&CITYNAME=$city&
STATEORPROVINCE=$state&POSTALCODE=$zip&COUNTRY=$country&CURRENCYCODE=$currencyCode";

Help me.

METHOD=doDirectPayment
&VERSION=65.1
&PWD=1314384818
&USER=taruku_1314384782_biz_api1.smaotdatainc.net
&SIGNATURE=A7IZoLJTxfLBP8mJElBqhcYwz10QhhzhFE3ZJbQDUy5L140pQPdMoinR
&PAYMENTACTION=Sale
&AMT=1.00
&CREDITCARDTYPE=Visa
&ACCT=4831623809779107
&EXPDATE=012012&CVV2=962
&FIRSTNAME=John
&LASTNAME=Doe
&STREET=1+Main+St
&CITY=San+Jose
&STATE=CA
&ZIP=95131
&COUNTRYCODE=US
&CURRENCYCODE=USD

Match your string with this one.. I think "COUNTRY" should be "COUNTRYCODE" also if problem exists match other address related parameters... :) will work fine..

These are incorrect parameters. Use PAYMENTREQUEST_0_SHIPTOSTREET, PAYMENTREQUEST_0_SHIPTOCOUNTRY, etc.
https://cms.paypal.com/uk/cgi-bin/?cmd=_render-content&content_ID=developer/e_howto_api_nvp_r_SetExpressCheckout

Note: PAYMENTREQUEST_0_ is optional. It's used for parallel payments. If you don't use that, just follow the docs and add PAYMENTREQUEST_0_ wherever it says so.