Set Booking Window for all Room Mailboxes with powershell.

Connect to Exchange Online with powershell $session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri "https://ps.outlook.com/powershell/" -Credential $cred -Authentication Basic -AllowRedirection  Import-PSSession $session  To change: get-mailbox|where {$_.recipientTypeDetails -eq "roomMailbox"} | Set-CalendarProcessing -BookingWindowInDays 365 To check the windows: get-mailbox|where {$_.recipientTypeDetails -eq "roomMailbox"} | Get-CalendarProcessing | FL Identity,BookingWindowInDays continue reading →