If you work in Outlook and a client or a team works in Google Calendar, you already know the problem: two calendars, two truths. The good news is that there are three ways to fix it. The right one depends on how many people are affected and how much they need to see. Here is how to sync Outlook and Google Calendar automatically.

Three ways to do it

Which one to choose

Set up an automatic sync

With AddSync Calendar the administrator does the setup, and each person signs in once. The four steps:

1. Add peopleOne by one, or import a list, up to the number of licenses.
2. Send the inviteAn optional email invite that asks the person to sign in with their Microsoft or Google account.
3. They sign inEach person signs in with their own account. You do not collect passwords.
4. Pick the directionOne way, the other way or both ways, set for every source.

How each system connects

Password changes in Exchange do not break the sync, because the connection does not depend on each person’s password.

Details to check

• Direction: which calendar wins when both change the same event.
• Scope: which calendars are synced, not only the main one.
• Zoom: meeting links travel with the meeting, so people join from their own calendar.
• Test week: create, move and cancel a few events on both sides.

Common mistakes

• Using a published link and expecting two-way editing.
• Syncing only the main calendar and forgetting shared ones.
• Turning on both-way sync without a master calendar.
• Skipping the test week.
• Giving the work to each person instead of the administrator.

Example: one team, one afternoon

Example, not a real customer. An administrator adds eight people from a list, sends the optional invite and asks them to sign in with their own accounts. Each person connects once. The administrator sets two-way for Outlook and Google, creates a test meeting on each side and checks that both appear. The whole setup takes an afternoon, and nobody retypes a meeting again.

Not only Outlook and Google

The same approach works with Exchange Server, Outlook.com, Apple Calendar, HCL Domino and CalDAV. If your company has several systems, one tool can connect them. See the AddSync Calendar overview for all supported systems.

Questions and answers

Can I sync Outlook and Google Calendar for free?

A published link is free but read-only and slow. Company sync needs a tool, and AddSync Calendar has a 14-day trial.

Does it work with Outlook.com and Microsoft 365?

Yes. Outlook.com and Microsoft 365 are both supported, and so is Exchange Server.

Will it sync in both directions?

You choose. One way, the other way or both ways, set per source.

Do people need to give me their passwords?

No. They sign in with their own account, and you do not collect passwords.

Written by the AddSync team.