Microsoft Surface Hub 2 SmCamera - Manual (Page 374)

PowerShell can be used to verify the current value of DeleteComments, and change it if
needed. For Surface Hub to display the join button, DeleteComments must be set to
False.
1. Connect to Exchange Online PowerShell.
PowerShell
2. This example gets the current value of DeleteComments for account
[email protected].
PowerShell
3. If DeleteComments is set to True, change it to False with this command.
PowerShell
After making this change invite the Surface Hub to a new Teams meeting, where the join
button should be displayed and allow you to join.
Get and set DeleteComments value
Connect-ExchangeOnline
Get-CalendarProcessing -Identity "ConferenceRoom01" | Select DeleteComments
Set-CalendarProcessing -Identity "ConferenceRoom01" -DeleteComments $false