See You cannot open a shared calendar in Outlook 2016 for Mac for instructions.
Note: If the Open Shared Calendar or Calendar Permissions buttons are unavailable, you might need to change one of your settings.
To start using it, just download it for free from this link to the developer’s website. On the Organize tab, choose Calendar Permissions. In addition, it has both installation and portable options, so it can be used from an external storage device, such as a pendrive or hard drive. It supports all versions of Outlook from 2003 to 2019, as well as Microsoft 365 64-bit. It is capable of synchronizing the elements of any folder, including those that we have shared. This free app allows us to securely sync Google and Outlook calendars, including meeting attendees, reminders, full descriptions, etc. Go to the Delegates tab > Open these additional mailboxes and add the desired user using the + sign. Outlook Google Calendar Sync, free and efficient Go to the Server tab > Enable the Sync shared mailbox option. On the internet we can find different applications that will facilitate the work of unifying the content of the Gmail and Outlook calendars without much effort.
Transfer calendars from Google to Outlook This wikiHow teaches you how to add calendars to Outlook. Adding Google, iCloud, Yahoo, and IMAP email accounts in the new Outlook for Mac now syncs with Microsoft Cloud.The vast majority of users who use a Mac want. Outlook Google Calendar Sync, free and efficient To carry out the reverse process and to be able to export the Outlook calendar to import it directly into.Synchronize both accounts with these applications.