Forum Discussion
Groups disappeared in Outlook?
Hi all, As of late, my o365 groups are no longer visible in Outlook. If I use o365 via the web, they are accessible without issue. No one else in any of my teams are experiencing this issue. ...
This is an old thread but I just struggled with this and ended up contacting Microsoft Support after nothing I tried worked. It turns out that there is an attribute that controls whether or not the group is hidden from Exchange Clients. This sequence of PowerShell commands fixed it for me for this specific group. You will have to set each group's HiddenFromExchangeClientsEnabled attribute to false to see them all.
PS C:\> Install-Module -Name ExchangeOnlineManagement
PS C:\> Import-Module ExchangeOnlineManagement
PS C:\> Connect-ExchangeOnline -Credential $UserCredential
PS C:\> Get-UnifiedGroup -Identity "Support" | fl HiddenFromExchangeClientsEnabled
HiddenFromExchangeClientsEnabled : True
PS C:\> Set-UnifiedGroup -Identity "Support" -HiddenFromExchangeClientsEnabled:$false
PS C:\> Get-UnifiedGroup -Identity "Support" | fl HiddenFromExchangeClientsEnabled
HiddenFromExchangeClientsEnabled : False
PS C:\> Install-Module -Name ExchangeOnlineManagement
PS C:\> Import-Module ExchangeOnlineManagement
PS C:\> Connect-ExchangeOnline -Credential $UserCredential
PS C:\> Get-UnifiedGroup -Identity "Support" | fl HiddenFromExchangeClientsEnabled
HiddenFromExchangeClientsEnabled : True
PS C:\> Set-UnifiedGroup -Identity "Support" -HiddenFromExchangeClientsEnabled:$false
PS C:\> Get-UnifiedGroup -Identity "Support" | fl HiddenFromExchangeClientsEnabled
HiddenFromExchangeClientsEnabled : False
This might explain the background as to why some groups are hidden from Exchange clients: https://office365itpros.com/2021/07/08/how-hide-teams-enabled-groups-from-exchange-online/
- Thanks for the clarification. It took me two weeks to get that out of MS support (mostly due to scheduling conflicts). Thank you for taking the time to post the explanation. It's very much appreciated. I'm sure many others will benefit from it or, at the very least, save a few hairs.