Send Email from Custom Graph

Hi,

I’m using this link to https://asiablog.acumatica.com/2017/05/sending-notification-template-from.html no send a custom notification, but for some reason is not working, the sender.send() return an empty list. I’m using a custom graph and DAC.  The form have the ActivityIndicator equal to true. What I’m doing wrong?

This is my code. 

protected static void SendEmail(string message, PXGraph Base, CustomDAC transaction)
        {
            Notification notification = PXSelect<Notification,
           Where<Notification.name, Equal<Required<Notification.name>>>>
           .Select(Base, new object[] { "my template" });

            bool sent = false;
            string sError = "Failed to send E-mail.";
            try
            {
                TemplateNotificationGenerator sender = TemplateNotificationGenerator.Create(transaction, notification.NotificationID.Value);
                sender.MailAccountId = (notification.NFrom.HasValue)
                    ? notification.NFrom.Value
                    : PX.Data.EP.MailAccountManager.DefaultMailAccountID;
                sender.RefNoteID = transaction.Noteid;
                //sender.Owner = notification.NFrom;
                sender.To = notification.NTo;
                sender.Body = notification.Body.Replace("((#replace#))", message);
                var activitieds = sender.Send();                
            }
            catch (Exception ex)
            {
                sent = false;
                sError = ex.Message;
            }        
        }

Thanks,

EV