public string CreateRecurringPaymentsProfileCode(string token, string amount, string profileDate, string billingPeriod, string billingFrequency)
    {
        CallerServices caller = new CallerServices();       
        IAPIProfile profile = ProfileFactory.createSignatureAPIProfile();

        // Set up your API credentials, PayPal end point, API operation and version.
        profile.APIUsername = APIUsername;
        profile.APIPassword = APIPassword;
        profile.APISignature = APIPassword;
        profile.Environment = "sandbox";
        profile.Subject = "Payment";
        caller.APIProfile = profile;

        NVPCodec encoder = new NVPCodec();
        encoder["VERSION"] = "69.0";

        // Add request-specific fields to the request.
        encoder["METHOD"] = "CreateRecurringPaymentsProfile";
        encoder["TOKEN"] = token;
        encoder["AMT"] = amount;
        encoder["PROFILESTARTDATE"] = profileDate;    
        encoder["BILLINGPERIOD"] = billingPeriod;
        encoder["BILLINGFREQUENCY"] = billingFrequency;
        encoder["DESC"] = "EZ Coaching";
        encoder["CURRENCYCODE"] = "USD";
        encoder["TOTALBILLINGCYCLES"] = "4";


        encoder["ACCT"] = "4900864163878723";
        encoder["EXPDATE"] = "062017";
        encoder["STREET"] = "1 Main St";
        encoder["CITY"] = "San Jose";
        encoder["STATE"] = "CA";
        encoder["ZIP"] = "95131";
        encoder["COUNTRYCODE"] = "1";
        encoder["SHIPTONAME"] = HttpContext.Current.Session["SHIPTONAME"].ToString();
        encoder["SHIPTOSTREET"] = HttpContext.Current.Session["SHIPTOSTREET"].ToString();
        encoder["SHIPTOCITY"] = HttpContext.Current.Session["SHIPTOCITY"].ToString();
        encoder["SHIPTOSTATE"] = HttpContext.Current.Session["SHIPTOSTATE"].ToString();
        encoder["SHIPTOZIP"] = HttpContext.Current.Session["SHIPTOZIP"].ToString();
       

        encoder["L_PAYMENTREQUEST_n_ITEMCATEGORY0"] = "Digital";
        encoder["L_PAYMENTREQUEST_n_NAME0"] = "Coaching";
        encoder["L_PAYMENTREQUEST_n_AMT0"] = "5.00";
        encoder["L_PAYMENTREQUEST_n_QTY0"] = "1";
       
        encoder["EMAIL"] = "abc@def.xyz";
       
        string pStrrequestforNvp = encoder.Encode();
        string pStresponsenvp = HttpCall(pStrrequestforNvp);

        // Execute the API operation and obtain the response.
        //string pStrrequestforNvp = encoder.Encode();
        //string pStresponsenvp = caller.Call("CreateRecurringPaymentsProfile",pStrrequestforNvp);
       
        NVPCodec decoder = new NVPCodec();
        decoder.Decode(pStresponsenvp);
        return decoder["ACK"].ToLower();
    }

string recAck = test.CreateRecurringPaymentsProfileCode(token, amt, System.DateTime.Now.ToString("yyyy-MM-ddTHH:mm:ss"), "Day", "30");