How To Sync Multiple Microsoft Teams Calendars Together

As mentioned in the How to Sync Google Calendar with Teams Calendar article, Microsoft has a bad habit of simultaneously supporting multiple products that do the same thing.

Outlook and Teams Calendar is one of the examples, as fundamentally they are the same thing, but in Microsoft Teams, you can only see the primary Outlook calendar, named Calendar.

Many professionals have more than one Microsoft Teams account. You might have one Teams Calendar for your employer, one for a client, and one for a side business. Each of those accounts has its own Teams Calendar, and none of them know about the others.

Given that all of these calendars are Microsoft products, you’d think syncing Microsoft Teams Calendars together is easy, but it’s not the case.

Let’s discuss how to sync multiple Microsoft Teams Calendars with each other, so that every Teams Calendar you own shows your real availability.

Why is Syncing Microsoft Teams Calendars Together Not Possible Through the Microsoft Teams Interface?

Syncing Outlook Calendars would work if you were to use Outlook, but the issue with Microsoft Teams Calendar is that it only displays and checks availability against the primary Outlook Calendar, called “Calendar”.

If you share a Teams Calendar from one account and import it into another account, it won’t show in Microsoft Teams, as the imported calendar is not the primary calendar of that account.

Furthermore, Microsoft Teams Calendar doesn’t allow importing other calendars via a URL, or other means.

This means that, out of the box, there is no way to make one Teams Calendar aware of the events in another Teams Calendar. Each Teams account only sees its own primary calendar, so your colleagues in one account will keep booking over meetings that live in another account.

How to Automatically Sync Multiple Microsoft Teams Calendars Together?

Given that syncing Microsoft Teams Calendars together is not possible through the Microsoft Teams Calendar interface, the only way to sync two or more Teams Calendars with each other is through using a third-party calendar sync tool, like OneCal.

Using OneCal, you can sync multiple Microsoft Teams Calendars with each other in real-time, automatically. OneCal writes the events straight into the primary calendar of each Teams account, which is the only calendar Microsoft Teams shows, so the synced events appear in the Teams Calendar view and count towards your availability.

OneCal shines when it comes to syncing two or more Microsoft Teams Calendars together because you can:

• Sync Multiple Microsoft Teams Calendars into one Microsoft Teams Calendar: OneCal enables you to sync all your Microsoft Teams Calendars into one Teams Calendar, enabling you to see all your events in a single Microsoft Teams account. Furthermore, this enables your team members to see your real availability when booking meetings with you through Microsoft Teams.
• Sync Multiple Microsoft Teams Calendars simultaneously: OneCal supports multi-way syncs, meaning that you can sync all your Teams Calendars with each other in one go. Say you have 5 Microsoft Teams Calendars across different accounts: Using OneCal, you can keep all of them in sync with each other automatically, in real-time. An event added to any one of them shows up in the other four.
• Sync Teams Calendars by configuring the privacy: You get to choose the event details propagated from one Teams Calendar to another. Say you are syncing a work Teams Calendar and a client’s Teams Calendar: You wouldn’t want the client to see your work meetings. With OneCal, you can just block the time in each Microsoft Teams Calendar, avoiding double booking and confusion.

Automatically Sync Multiple Microsoft Teams Calendars Together Using OneCal

OneCal is the top calendar syncing software, trusted by thousands of professionals and companies who rely on it on a day-to-day basis.

The synchronization is reliable, and the team is very helpful when it comes to questions, suggestions, or issues.

Sign up for a 14-day free trial, no credit card needed, to sync your Microsoft Teams Calendars together in less than one minute.

FAQ

Why can’t I sync multiple Microsoft Teams calendars together directly inside Microsoft Teams?

Microsoft Teams only shows the primary Outlook calendar (called Calendar) of the account you are signed in with, and offers no option to import or merge calendars from other accounts. This means one Teams Calendar can never see the events of another Teams Calendar on its own.

Does Microsoft Teams let me add another Teams calendar by URL?

No. Unlike Outlook, Microsoft Teams Calendar has no “subscribe to URL” or similar import feature, so you can’t add a second Teams Calendar this way.

Does sharing a Teams calendar from one account make it appear in my other Teams account?

No. Shared or imported calendars are not visible in Teams. Each Teams account only shows its own primary calendar.

What calendar does Microsoft Teams use when checking availability?

Microsoft Teams checks availability solely against the primary Outlook calendar (called Calendar) of the signed-in account, ignoring all others. Meetings in your other Teams accounts are not taken into account unless they are synced into that primary calendar.

How can I sync multiple Microsoft Teams calendars with each other automatically?

Use a third-party sync app like OneCal, which syncs events between all your Microsoft Teams calendars in real-time. OneCal syncs events straight into the primary calendar of each account, so every Teams Calendar shows your real availability, both to you and to your colleagues.

Can I sync more than two Microsoft Teams calendars together?

Yes. OneCal supports multi-way syncs, so you can keep three, five, or more Microsoft Teams calendars in sync with each other at the same time.

Can I choose what event details get synced between Microsoft Teams calendars?

Yes. OneCal lets you copy full details, just titles, or only busy status to keep sensitive information private between your Teams calendars.

How long does the OneCal setup take?

Finishing the OneCal calendar synchronization setup takes less than 5 minutes. No actions are required after you complete the initial configuration.