通过静默 url 进行的 Paypal 定期订阅给出无效响应？

Question

通过静默 url 进行的 Paypal 定期订阅在真实账户上给出无效响应和空白状态以及订阅 ID，但这在沙盒账户上工作正常。

string cmd = "_xclick-subscriptions";
        string redirect = "";        
        redirect += "?cmd=" + cmd;
        redirect += "&business=" + businessEmail;
        redirect += "&item_name=" + lblDesc.Text.Trim();        
        redirect += "&no_shipping=" + "2";
        redirect += "&no_note=" + "1";
        redirect += "&currency_code=" + "USD";
        redirect += "&lc=" + "";        
        redirect += "&return=" + successPage;
        redirect += "&cancel_return=" + FailurePage;
        redirect += "notify_url=" + successPage;
        redirect += "&rm=" + "2";
        //for first month free count=1
        redirect += "&a1=" + "0.0";
        redirect += "&p1=" + count.ToString();
        redirect += "&t1=" + "M";
        //new added parameter for recurring
        redirect += "&a3=" + total;
        redirect += "&p3=" + count.ToString();
        redirect += "&t3=" + "M";
        redirect += "&src=" + "1";
        redirect += "&sra=" + "1";      

        return "https://www.paypal.com/cgi-bin/webscr"+ redirect;

得到回应

https://www.paypal.com/cgi-bin/webscr&cmd=_notify-validate

Answer 1

如果您尝试使用 PDT 获得响应，然后返回并验证，请确保您的帐户启用了 PDT 并设置了返回 URL。然后尝试删除返回 url 的代码行和您传递的 rm 变量。