I am using start_withoutlogin_param method to start meeting but i am getting SDKERR_WRONG_USEAGE error

Meeting SDK Windows
1

I am using Windows SDK C#
---------------------------------------------------------------------------------------- ZOOM_SDK_DOTNET_WRAP.CZoomSDKeDotNetWrap.Instance.GetAuthServiceWrap().Add_CB_onAuthenticationReturn(onAuthenticationReturn);
ZOOM_SDK_DOTNET_WRAP.CZoomSDKeDotNetWrap.Instance.GetAuthServiceWrap().Add_CB_onLoginRet(onLoginRet);
ZOOM_SDK_DOTNET_WRAP.CZoomSDKeDotNetWrap.Instance.GetAuthServiceWrap().Add_CB_onLogout(onLogout);
ZOOM_SDK_DOTNET_WRAP.AuthParam param = new ZOOM_SDK_DOTNET_WRAP.AuthParam();
param.appKey = “xyz”;
param.appSecret = “abc”;
ZOOM_SDK_DOTNET_WRAP.CZoomSDKeDotNetWrap.Instance.GetAuthServiceWrap().SDKAuth(param);

    public void onAuthenticationReturn(AuthResult ret)
    {
        if (ZOOM_SDK_DOTNET_WRAP.AuthResult.AUTHRET_SUCCESS == ret)
        {
            Start();
        }
        else
        {
         
        }
    }

  private void Start()
  {
        ZOOM_SDK_DOTNET_WRAP.StartParam param = new 
       ZOOM_SDK_DOTNET_WRAP.StartParam();
        param.userType = 
        ZOOM_SDK_DOTNET_WRAP.SDKUserType.SDK_UT_WITHOUT_LOGIN;
        ZOOM_SDK_DOTNET_WRAP.StartParam4WithoutLogin 
      start_withoutlogin_param = new 
       ZOOM_SDK_DOTNET_WRAP.StartParam4WithoutLogin();
        start_withoutlogin_param.meetingNumber = UInt64.Parse("3123456");
        start_withoutlogin_param.userID = "123456";
        start_withoutlogin_param.userToken = "sdgdfgdfgg";
        start_withoutlogin_param.userZAK = "dfgdfgdfgdfgdfg";
        start_withoutlogin_param.userName = "ABC";
        start_withoutlogin_param.zoomuserType = 
      ZOOM_SDK_DOTNET_WRAP.ZoomUserType.ZoomUserType_APIUSER;
        param.withoutloginStart = start_withoutlogin_param;

        ZOOM_SDK_DOTNET_WRAP.SDKError err = ZOOM_SDK_DOTNET_WRAP.CZoomSDKeDotNetWrap.Instance.GetMeetingServiceWrap().Start(param);
        if (ZOOM_SDK_DOTNET_WRAP.SDKError.SDKERR_SUCCESS == err)
        {
            
        }
        else//error handle
        {
            
        }
     
	 }
2

Hi aparab,

I see you have the same question here:Hello i am trying to start meeting but getting SDKERR_WRONG_USEAGE mesage, please see my answer over there and we will provide further assistance over there.

Thanks!