See more:

C#2.0

C#

C#3.5

C#5.0

API

WhatsApp

Hello,

I am trying to build a new product to send bulk messages using WhatsAppApi.WhatsApp but I am getting an Error i.e. "Login Failed... Not authorized". I used the following code,

WhatsAppApi.WhatsApp wa = new WhatsAppApi.WhatsApp("fromnumber", "mynumberpassword", "NickName", false, false);
                wa.OnConnectSuccess += () =>
                {
                    Console.WriteLine("Connected successfully");

                    wa.OnLoginSuccess += (phoneNumber, data) =>
                    {
                        wa.SendMessage("toNumber", "Test Message");
                        Console.WriteLine("Send Successfully");
                    };

                    wa.OnLoginFailed += (data) =>
                    {
                        Console.WriteLine("Login Failed " +data);
                    };
                    wa.Login();
                };
                wa.OnConnectFailed += (ex) =>
                    {
                        Console.WriteLine("Connection Failed");
                    };
                wa.Connect();
                Console.ReadLine();

Above MynumberPassword is Password which i generated from WART (whatsapp registration tool).
Using above c# code I can connect but I am not able to authorized. I don't have any idea, if you guys have please let me know.