How can a global admin list all the shared calendars in the tenant?

Question

I am a global admin and need to search for a calendar by name. Does Office 365 have this capability or do I have to write a PowerShell script to get all the data and filter it with a regex or something?

Thanks!

Answer 1

Nothing built-in, but easy to report on via PowerShell. Here's a sample script I wrote a while back: https://www.michev.info/Blog/Post/3676/office-365-permission-inventory-calendar-permissions-2

Answer 2

@Anonymous
You could use the script below to check whether there exists non-default permissions and non-anonymous permissions on user calendar:

$users = Get-Mailbox -ResultSize Unlimited -RecipientTypeDetails UserMailbox  
  
foreach($user in $users){  
    $user = $user.PrimarySmtpAddress+":\calendar"  
    if(Get-MailboxFolderPermission -Identity $user | where{$_.User -notlike "*Default*" -and $_.User -notlike "*Anonymous*"}){  
        "`n"+ $user + ":"  
        Get-MailboxFolderPermission -Identity $user | where{$_.User -notlike "*Default*" -and $_.User -notlike "*Anonymous*"}  
    }  
}  

If there exists such permission, you will get an output like below:

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