Documentation

Everything you need to know about setting up and using OggSync.

Installation

Getting started with OggSync is straightforward. Follow these steps to install the application on your Windows computer.

System Requirements

  • Windows 10 or later (Windows 7/8 also supported)
  • Microsoft Outlook 2010 or later
  • .NET Framework 4.5 or later
  • Active internet connection

Installation Steps

  1. Download the OggSync installer from the download page
  2. Run the downloaded OggSyncSetup.exe file
  3. Follow the installation wizard prompts
  4. Launch OggSync from the Start menu or system tray

Tip: OggSync installs to your user profile by default and doesn't require administrator privileges.

Google Authorization

OggSync needs permission to access your Google Calendar. This is done through Google's secure OAuth system.

Authorizing Access

  1. When you first launch OggSync, click "Connect Google Account"
  2. Your browser will open to Google's sign-in page
  3. Sign in with the Google account you want to sync
  4. Review the permissions and click "Allow"
  5. Return to OggSync - you should see your Google calendars listed

Important: OggSync only requests the minimum permissions needed for calendar sync. We never access your email or other Google services.

Google Workspace Accounts

If you use Google Workspace (formerly G Suite), the authorization process is the same. However, your organization's administrator may need to approve OggSync for use with your domain.

Your First Sync

Once connected, you're ready to synchronize your calendars.

  1. Select which Google calendar you want to sync from the dropdown
  2. Choose the Outlook calendar folder to sync with (usually "Calendar")
  3. Click the "Sync Now" button
  4. Wait for the initial sync to complete - this may take a few minutes depending on how many events you have

After the initial sync, subsequent syncs are much faster as only changed events are processed.

Settings & Configuration

Access OggSync settings by right-clicking the system tray icon and selecting "Settings".

Sync Window

Configure how far back and forward OggSync should sync events. The default is 365 days in each direction. Reducing this can speed up sync times if you have many old events.

Sync Direction

By default, OggSync performs two-way sync. You can change this to:

  • Two-way: Changes sync in both directions (default)
  • Google to Outlook: Only pull changes from Google
  • Outlook to Google: Only push changes to Google

Conflict Resolution

When the same event is modified in both calendars between syncs, you can choose which version wins:

  • Most recent wins: The last-modified version is kept
  • Google wins: Google Calendar version is always kept
  • Outlook wins: Outlook version is always kept

Multiple Calendars (Pro)

With OggSync Pro, you can sync multiple Google calendars simultaneously.

Adding Additional Calendars

  1. Go to Settings > Calendars
  2. Click "Add Calendar"
  3. Select the Google calendar from the dropdown
  4. Choose or create an Outlook folder for this calendar
  5. Configure sync settings for this calendar pair

Calendar Mapping

You can map multiple Google calendars to separate Outlook folders, or combine them into a single view. The choice depends on how you prefer to organize your schedule.

Scheduled Sync (Pro)

Set up automatic synchronization so you never have to think about it.

Configuring Auto-Sync

  1. Go to Settings > Schedule
  2. Enable "Automatic Sync"
  3. Set your preferred sync interval (5 minutes to 24 hours)
  4. Optionally, set specific times when sync should run

OggSync runs quietly in the background and syncs according to your schedule.

Contacts & Tasks (Pro)

Beyond calendars, OggSync Pro can also synchronize your contacts and tasks.

Contacts Sync

Sync your Google Contacts with Outlook's address book. Contact photos, phone numbers, emails, and addresses are all synchronized.

Tasks Sync

Keep your Google Tasks and Outlook Tasks in sync. Task titles, due dates, and completion status are synchronized.

Troubleshooting

Sync Errors

If you encounter sync errors, check the sync log (Settings > View Log) for detailed information. Common issues include:

  • Authorization expired: Re-authorize your Google account
  • Network error: Check your internet connection
  • Outlook not responding: Restart Outlook and try again

Reset Sync

If calendars get out of sync, you can perform a full reset:

  1. Go to Settings > Advanced
  2. Click "Reset Sync State"
  3. Choose whether to keep Google or Outlook as the master
  4. Run a full sync

Warning: Resetting sync state will re-process all events. Make sure you've selected the correct master calendar to avoid data loss.

Getting Help

If you're still having issues:

  • Check the FAQ for common questions
  • Email us at support@oggsync.com
  • Include your sync log when contacting support