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You can use our connector with Delegation Permission: Microsoft Exchange Online - Microsoft 365 (Delegation Permission)
Share a resource with external persons
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Create an iCal link:
To publish a room resource by iCal you need to have access to the Exchange online PowerShell moduleYou can use the following command to publish the resource for one year:
Adjust the identity with the Mail of the room.
Code Block Connect-ExchangeOnline
Code Block Set-MailboxCalendarFolder -Identity room@myorganization.com:\calendar -PublishEnabled $true -DetailLevel Full -PublishDateRangeTo OneYear -PublishDateRangeFrom OneYear
To get the link of the share, you need the following command:
Code Block Get-MailboxCalendarFolder -Identity room@myorganization.com:\calendar
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In Outlook, select File >Account Settings >Account Settings. You will see a list of your email accounts.
Select the Microsoft Exchange account that you use to manage someone else's calendar and choose Change....
Choose More Settings, followed by the Advanced tab.
Select the checkbox next to: Turn on shared calendar improvements.
Close and restart OutlookRestart Outlook and try again to add the calendar.