When you are using two different operating systems or devices, this makes it a mess to keep all your information synced in real time. There are not many reliable and secure options available to keep important data across platforms and devices. But luckily, CompanionLink offers the most reliable services to sync Microsoft Outlook with Google Calendar easily!
This powerful syncing tool allows you to take complete control of your data with real-time synchronization. Now you can use different operating systems while ensuring that the data is accessible across all devices without any delay. The real-time synchronization boosts your productivity, cuts business costs, and plays an important role in successful customer relationship management. If you are looking for how to sync Google applications with Android, read our step-by-step guide here!
Why You Need to Sync Calendars
When calendars live in two places, you can miss events. You might schedule a doctor’s visit at the same time as a business call. That is no fun. Also, switching between apps wastes time. You open Outlook, then switch to your browser for Google Calendar. It slows you down. Syncing fixes this problem.
Synchronization brings order. All your events appear in one view. You save time. You plan better. You see free slots at a glance. Also, you avoid confusion when you work with friends who use only Google Calendar. They send invites, and you see them in Outlook. You stay on top of every plan.

1. Single View for All Events
With CompanionLink, you get a Windows Outlook Google Calendar connection that shows every event side by side. You click “Other Calendars” in Outlook. You pick your Google Calendar. Now you see both lists in one window. You do not need to juggle tabs or apps. This neat view makes planning simple.
Instead of two separate lists, you have one. You check your week at a glance. You know exactly when you are busy. You spot free time for new meetings. You never double-book again. This is a major perk of the two-way sync Outlook Google Calendar tool.
2. Avoid Double Bookings
Imagine you schedule a project review at 2 pm in Outlook. Later, your friend invites you to lunch at 2 pm on Google Calendar. You do not see the lunch invite until it’s too late. You end up rushing or missing fun time. CompanionLink stops this. It mirrors every change, so your calendars never conflict.
Also, shared calendars sync too. You work on a team. Some team members use Google Calendar. Others use Outlook. With bi-directional syncing, everyone sees the same events. Teamwork becomes smoother. No one is left out of meeting invites.
What Is CompanionLink?
CompanionLink is a small app for Windows PCs. It links Microsoft Outlook and Google Calendar. It runs quietly in the background. You set it up once. Then it keeps working. Each change you make in one calendar appears in the other in seconds.
CompanionLink uses secure connections, and it is highly compatible with DejaOffice. It relies on Google’s OAuth token system. That means your login stays safe. You do not share your password with the app. Also, CompanionLink supports Outlook on Office 365, Exchange Server, and local PST files. It works with desktop and portable installs.
Key Features
- Bi-Directional Sync: Edits in Outlook and Google Calendar update each other.
- Configurable Directions: Choose one-way or two-way syncing.
- Multiple Calendar Support: Sync several Google calendars to distinct Outlook folders.
- Category and Color Mapping: Retain your Outlook color codes in Google Calendar.
- Scheduled Syncs: Set automatic sync at intervals you choose.
- Conflict Resolution: Decide which changes win when events differ.
- Secure OAuth: No passwords stored; uses Google’s secure login flow.
- Logging & Diagnostics: Get detailed logs when you need to troubleshoot CompanionLink sync issues.
These features make CompanionLink the best way to sync Outlook to Google Calendar.
Step-by-Step Setup Guide
Follow these steps for a smooth setup of CompanionLink for calendar sync. You will be done in just a few clicks.
1. Download and Install CompanionLink
- Open your browser and go to the CompanionLink download page.
- Click Download for Windows.
- Wait for the file to finish downloading.
- Run the installer.
- Follow each prompt.
- When it finishes, CompanionLink is on your PC.
Feel free to take a screenshot of each step. Add alt text like “CompanionLink installer screen” so readers know what to expect.
2. Launch CompanionLink and Choose Calendars
- Open CompanionLink from your desktop icon.
- In the “From” dropdown, select Microsoft Outlook.
- In the “With” dropdown, choose Google.
- Click Settings to proceed.
Now you have the basic Windows Outlook and Google Calendar sync software selected.
3. Authorize Google Access
- In Settings, click Authorize Google.
- A Google login window pops up.
- Enter your Google email and password.
- Complete any two-step verification if you use it.
- Grant CompanionLink permission to view and edit your calendars.
This step ensures safe CompanionLink Google Calendar integration.
4. Select Data Types and Folders
- Under “Applications,” check Calendar.
- (Optional) Check Contacts or Tasks if you want to sync those too.
- Expand the Outlook section.
- Choose which Outlook calendar folders to sync.
You can sync your main calendar or pick subfolders. This makes it easy if you have many calendars.
5. Fine-Tune Advanced Settings
- Click Advanced Settings.
- Limit your Sync Time Range to recent events. For example, only the next 12 months.
- Turn on Realtime Sync for instant updates.
- Check Category Mapping to keep your colors.
- Enable Scheduled Sync if you want a regular automatic update.
- Set Conflict Resolution rules: Latest edit wins or Outlook wins.
- Click Save.
These options help you avoid slow syncs. They also let you handle time zones and recurring events.
6. Start and Verify the Sync
- Back in the main window, click Sync.
- Watch the progress bar fill.
- When it ends, open Outlook. Check the Google events.
- Open Google Calendar in your browser. Check the Outlook events.
Congratulations! You now have a sync Outlook calendar with Google Calendar automatically solution.

Extra Tips for Smooth Synchronization
Here are some simple tips to keep your sync running well.
- Check Time Zone Settings: Make sure both Outlook and Google Calendar use the same time zone. If one uses PST and the other uses EST, events jump times. Go to Outlook Options > Calendar > Time Zones. In Google Calendar, click Settings > Time Zone.
- Test with a Sample Event: Before you add many events, create a test event. Name it “Test Sync.” Add it to Outlook. See it appear in Google Calendar. Then delete it. This quick test shows sync is working.
- Enable Notifications: Set reminders in both calendars. That way, if an event does not sync, you still get a notification. You can fix the issue before the actual time.
- Keep Your PC Awake: If your computer goes to sleep, the sync pauses. To avoid this, adjust your power settings. Go to Control Panel > Power Options. Pick a plan that keeps the PC awake when plugged in.
- Backup Your Calendars: Export your calendars before the first sync. In Outlook, go to File > Export. In Google Calendar, click Settings > Export. Store the files in a safe place. This protects you if you ever need to restore.
Troubleshooting Common Challenges
Even the best sync can face hiccups. Here’s how to fix them.
1. Google Login Errors: If Google blocks CompanionLink, log in to your Google account in a browser. Go to Security > Third-party access. Remove any old CompanionLink entries. Then re-authorize in the app.
2. Sync Hangs or Fails:
- Open CompanionLink.
- Go to Advanced Settings.
- Click Clear Cache.
- Sign out of Google in the app.
- Sign back in.
- Click Sync again.
This often fixes stalled jobs.
3. Category Colors Don’t Match: If your event colors look wrong, check Category Mapping in Advanced Settings. Make sure each Outlook category is linked to a Google color.
4. Firewall or Antivirus Blocks: Some firewalls block CompanionLink connections. Add CompanionLink.exe to your firewall’s allowed list. Then restart the sync.
5. Multiple Profiles Conflict: If you sync more than one Google account, use separate CompanionLink profiles. Each profile pairs one Outlook calendar with one Google account. This avoids overlaps.
Frequently Asked Questions
Is CompanionLink free?
No, it offers a 14-day free trial. After that, you need to buy a license. Each license covers up to three PCs under one email.
Can I sync contacts and tasks?
Yes. In Settings, check “Contacts” or “Tasks.” They sync just like your calendars.
Does it work with Office 365?
Yes. CompanionLink supports Outlook on Office 365, Exchange Server, and local PST files.
Can I sync multiple Google accounts?
Yes. Create a new profile for each Google account. Then set each profile to sync the calendars you want.
How do I uninstall CompanionLink?
Go to Control Panel > Programs > Uninstall a Program. Find CompanionLink and click Uninstall. Your calendars stay safe.
Conclusion
Now you know how to sync Microsoft Outlook with Google Calendar Easily Using CompanionLink. You learned why syncing matters. You saw all the setup steps. You got extra tips and troubleshooting help. You even explored FAQs and alternatives.
Syncing your calendars saves time and stress. It keeps you on track. It avoids double bookings. It makes teamwork smoother. Try CompanionLink today. Keep your life in one place and never miss an event again.