How To Subscribe Google Calendar In Outlook 2016 For Mac

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Original KB number: 4025591

Anyone knows how to synchronise google calendar with Outlook 2016 for Mac newest version PLS? Community content may not be verified or up-to-date. All Replies (4) 3/21/15. Currently that is not possible. Switch to the calendar module. In the Manage Calendars group on the toolbar, select Open Calendar. Select the From Internet option. Provide the path of your Internet calendar file. Today, Outlook 2016 for Mac is adding support for Google Calendar and Contacts—available first to the Office Insider Fast community. Microosft is excited to be delivering on these highly-requested features for Mac users and matching our Outlook apps for iOS and Android, providing Google accounts with a more powerful way to stay in control of the day ahead. Log in to your Google Calendar account. In the left column, click My calendars to expand it, hover over the calendar that you want to add to Outlook as an Internet Calendar Subscription. Select the three dots to the right of the calendar name, then select Settings. See Add an email account to Outlook for instructions. Contacts and Calendars: This feature is available for users on M365 Subscription. On build number 0902 and higher you can sync contacts and calendar with Outlook for Mac 2016 but first you need to add the account to Outlook. See Add an email account to Outlook for instructions.

Symptoms

You try to add an Internet calendar in Microsoft Outlook 2016, Outlook 2019, or Outlook for Office 365 by following these steps:

Switch to the calendar module.
In the Manage Calendars group on the toolbar, select Open Calendar.
Select the From Internet option.
Provide the path of your Internet calendar file.
Select OK.

When you use this method for some Internet servers, the calendar is not added successfully. After a progress window opens briefly, you are returned to the calendar module without a new calendar added. Additionally, you don't receive any error message.

Cause

By default, Outlook 2016, Outlook 2019, and Outlook for Office 365 use a new modern authentication stack. Even if the Internet calendar file that you are trying to open does not require authentication, Outlook broadcasts its ability to do modern authentication on the server that contains the calendar. Most server software responds to this broadcast by supporting modern authentication. However, some servers consider the broadcast to be an invalid client request. Therefore, they return a response that causes Outlook to cancel the attempt to add the calendar.

For example, server software that's running on Amazon Web Services (AWS) may consider the authentication broadcast to be invalid and refuse the connection.

Workaround

To work around this issue, use Outlook Web App (OWA). OWA doesn't have this authentication header behavior. Therefore, it will successfully open the Internet calendar that you want to add.

To use OWA to add the calendar, follow these steps:

Sign in to OWA.
Switch to the Calendar module.
Select the Add calendar menu.
Select the From internet option.
Provide the URL and an optional calendar name.
Select Save.

More information

When you add the Internet calendar by using OWA, the server that's running Exchange Server manages the calendar subscription and updates. Calendar updates sync approximately every four hours.