Question

我正在使用快速结账方式使用paypal获取帐单协议ID。

我正在遵循本指南：

https://www.x.com/developers/paypal/documentation-tools/how-authorize-and-run-reference-transaction-express-checkout

在我执行“SetExpressCheckout”的第一步：以下是代码

public string SetExpressCheckout(string Amount)
    {
        string returnURL = "http://localhost:50325/ReviewOrder.aspx" + "?amount=" + Amount + "&PAYMENTREQUEST_0_CURRENCYCODE=USD";
        string cancelURL = returnURL.Replace("ReviewOrder", "ExpCheckOut");
        string strCredentials = "USER=" + strUsername + "&PWD=" + strPassword + "&SIGNATURE=" + strSignature;
        string strNVP = strCredentials;
        strNVP += "&PAYMENTREQUEST_0_PAYMENTACTION=AUTHORIZATION&&PAYMENTREQUEST_0_AMT=25" + "&L_BILLINGTYPE0=MerchantInitiatedBilling" + "&RETURNURL=" + returnURL;
        strNVP += "&CANCELURL=" + cancelURL;
        strNVP += "&METHOD=SetExpressCheckout&VERSION=" + strAPIVersion + "&DESC=test EC payment" +"&NOSHIPPING=0" ;
        //Create web request and web response objects, make sure you using the correct server (sandbox/live)
        HttpWebRequest wrWebRequest = (HttpWebRequest)WebRequest.Create(strNVPSandboxServer);
        //Set WebRequest Properties
        wrWebRequest.Method = "POST";
        // write the form values into the request message
        StreamWriter requestWriter = new StreamWriter(wrWebRequest.GetRequestStream());
        requestWriter.Write(strNVP);
        requestWriter.Close();
        // Get the response.
        HttpWebResponse hwrWebResponse = (HttpWebResponse)wrWebRequest.GetResponse();
        StreamReader responseReader = new StreamReader(wrWebRequest.GetResponse().GetResponseStream());
        // and read the response
        string responseData = responseReader.ReadToEnd();
        responseReader.Close();
        return responseData;
    }

回复是：

    TOKEN=EC-09082530FY878870B&
    TIMESTAMP=2013-03-25T00:45:56Z&
    CORRELATIONID=3d33037174d55&
    ACK=SuccessWithWarning&
    VERSION=86&
    BUILD=5479129&
    L_ERRORCODE0=11452&
    L_SHORTMESSAGE0=Merchant not enabled for reference transactions&
    L_LONGMESSAGE0=Merchant not enabled for reference transactions&
    L_SEVERITYCODE0=Warning

如何在步骤3中获取BillingAgreeentd：

第3步的代码是：

public string GetBillingAgreementID()
    {
        string returnURL = "http://localhost:50325/ReviewOrder.aspx" + "?amount=" + Amount + "¤cy=USD";
        string cancelURL = returnURL.Replace("ReviewOrder", "ExpCheckOut");
        string strCredentials = "USER=" + strUsername + "&PWD=" + strPassword + "&SIGNATURE=" + strSignature;
        string strNVP = strCredentials;
        strNVP += "&RETURNURL=" + returnURL;
        strNVP += "&CANCELURL=" + cancelURL;
        strNVP += "&METHOD=CreateBillingAgreement&VERSION=" + strAPIVersion + "&TOKEN=" + Session["Token"];
        //Create web request and web response objects, make sure you using the correct server (sandbox/live)
        HttpWebRequest wrWebRequest = (HttpWebRequest)WebRequest.Create(strNVPSandboxServer);
        //Set WebRequest Properties
        wrWebRequest.Method = "POST";
        // write the form values into the request message
        StreamWriter requestWriter = new StreamWriter(wrWebRequest.GetRequestStream());
        requestWriter.Write(strNVP);
        requestWriter.Close();
        // Get the response.
        HttpWebResponse hwrWebResponse = (HttpWebResponse)wrWebRequest.GetResponse();
        StreamReader responseReader = new StreamReader(wrWebRequest.GetResponse().GetResponseStream());
        // and read the response
        string responseData = responseReader.ReadToEnd();
        responseReader.Close();
        return responseData;
    }

回应是：

 TIMESTAMP=2013-03-25T00:51:34Z&
 CORRELATIONID=854e6beed1e82&
 ACK=Failure&
 VERSION=86&
 BUILD=5479129&
 L_ERRORCODE0=11455&
 L_SHORTMESSAGE0=Buyer did not accept billing agreement&
 L_LONGMESSAGE0=Buyer did not accept billing agreement&
 L_SEVERITYCODE0=Error

如何获得BillingAgreemntId？是因为“L_SHORTMESSAGE0 =商家未启用参考交易”来自“SetExpressCheckout”的这条消息我是否无法获得BillingAgreementID？

请帮我解决这个问题。感谢。

Answer 1

如果是真实帐户，您需要联系PayPal并请求在帐户中启用此功能。如果您需要在沙箱上启用它，则需要联系PayPal MTS并在您的沙箱帐户上启用此功能。

Paypal使用快速结账来获取BillingAgreementID

1 个答案: