I assume you are referring to Outlook for Mac and connecting this to Google calendar. Unfortunately, Outlook for Mac does not currently support CalDAV or CardDAV. This means that it is not possible to synchronize your Outlook on the web, iCloud, Gmail calendar or contacts with Outlook 2016 for Mac.
You can sync iCal for Google calendar as follows:
On your computer, open Calendar
.
In the top left corner of your screen, click Calendar > Preferences.
Click the Accounts tab.
On the left side of the Accounts tab, click +.
Select Google > Continue.
Enter your Gmail address, password, and verification code (if you have one).
Click Accept.
On the Accounts tab, choose how often you want Apple Calendar and Google Calendar to sync.
I assume you are referring to Outlook for Mac and connecting this to Google calendar. Unfortunately, Outlook for Mac does not currently support CalDAV or CardDAV. This means that it is not possible to synchronize your Outlook on the web, iCloud, Gmail calendar or contacts with Outlook 2016 for Mac.
You can sync iCal for Google calendar as follows:
On your computer, open Calendar
.
In the top left corner of your screen, click Calendar > Preferences.
Click the Accounts tab.
On the left side of the Accounts tab, click +.
Select Google > Continue.
Enter your Gmail address, password, and verification code (if you have one).
Click Accept.
On the Accounts tab, choose how often you want Apple Calendar and Google Calendar to sync.