Access a shared calendar
If you have permissions to a shared mailbox, the shared calendar associated with the shared mailbox is automatically added to your My Calendars list.
In Outlook, select Calendar
In the folder pane, under My Calendars, select the shared calendar
Open a shared contacts list in Outlook
If you have permissions to a shared mailbox, the contacts folder from the shared mailbox is automatically added to your My Contact list.
In Outlook, select People
Under My Contacts, select the contacts folder for the shared contacts list
Outlook Web App
Sign in to your Microsoft 365 account using a Web browser. Select Calendar
Right-click OTHER CALENDARS, and then select Open calendar
In From Directory, search for the shared calendar you want to open. Select the shared mailbox you want to open and select Open
The shared calendar displays in your Calendar folder list
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