Google Calendar Event Not Showing in Calendar

We have created a Service Account in Google and Using Calendar API for adding events, it worked fine before ,after google stopped the account and reactivated it , it didn't work

We have tried new service account and debugged line by line of our code and no error and also returning created events but not showing in calendar

        CalendarService service = null;
        var serviceAccountCredentialFilePath = 
        if (Path.GetExtension(serviceAccountCredentialFilePath).ToLower() 
        == ".json")
            GoogleCredential credential;

            string[] scopes = new string[] {
                CalendarService.Scope.Calendar, // Manage your calendars
                CalendarService.Scope.CalendarReadonly // View your Calendars
            using (var stream = new FileStream(serviceAccountCredentialFilePath, FileMode.Open, FileAccess.Read))
                credential = GoogleCredential.FromStream(stream)
            // Create the service.
            service = new CalendarService(new BaseClientService.Initializer
                HttpClientInitializer = credential,
                ApplicationName = "Esoco"
        // End //

        // Insert Event //
        var myEvent = new Event
            Id = guid,
            //Transparency =  "OPAQUE",
            Summary = subject,
            Location = location,
            Start = new EventDateTime { TimeZone = timezone, DateTime = start },
            End = new EventDateTime { TimeZone = timezone, DateTime = end },
            Attendees = objattendees,
            Organizer = organizerdata,
            Description = summary,


        myEvent.Start.DateTimeRaw = myEvent.Start.DateTimeRaw.Replace("Z", "");
        myEvent.End.DateTimeRaw = myEvent.End.DateTimeRaw.Replace("Z", "");


        var recurringEvent = service.Events.Insert(myEvent, "primary");
        recurringEvent.SendNotifications = true;
            var outputofevent = recurringEvent.Execute();
            ScriptManager.RegisterClientScriptBlock(this, typeof(string), "Alertscript", "alert('"+outputofevent.Status+"')", true);

Expected Result is Inserted Event Display in Calendar but Actual Result is Not Displayed in Calendar

1 answer

  • answered 2019-09-10 12:02 DaImTo

    remember that the following code inserts your events into the service accounts primary calendar

    var recurringEvent = service.Events.Insert(myEvent, "primary");

    In order to see these events you will need to either do an events.list or invite someone else to the event so that they can see it in their own calendar.

    Beyond that there is currently an issue on the forums about invites not being sent