Overdue Edit: As of version 0.9.6 of the MicrosoftTeams PowerShell module, the Get-Team command now returns all teams when run as an administrator. Graph API calls can also do this.
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With the current (0.9.1) beta version of the Teams PowerShell module, as has been pointed out in other posts, the Get-Team command only returns Teams you -- the user running the command -- are a member of. However, as community member Nino Paulo found in another thread specific to the Graph API endpoint, we can use the error codes we get back from some of the related Teams commands to work around the current limitation. This can work for PowerShell as well, which may fit better into existing workflows and admin experience.
Following is a snippet that uses the Get-UnifiedGroup Exchange Online PS command to get all O365 Groups, then uses the Get-TeamChannel Microsoft Teams PS command across them and based on the response (no error, a 403 Access Denied error, or a 404 Not Found error) reports whether the O365 Group is TeamsEnabled. This can stand as its own .ps1, can fit into another script, or the output can be modified as needed (for example, output Primary SMTP rather than Azure AD Group ID). Note as written it does need to have an Exchange Online PS session and Microsoft Teams PS session already connected to work.
$o365groups = Get-UnifiedGroup
foreach ($o365group in $o365groups) {
try {
$teamschannels = Get-TeamChannel -GroupId $o365group.ExternalDirectoryObjectId
[pscustomobject]@{GroupId = $o365group.ExternalDirectoryObjectId; GroupName = $o365group.DisplayName; TeamsEnabled = $true}
} catch {
$ErrorCode = $_.Exception.ErrorCode
switch ($ErrorCode) {
"404" {
[pscustomobject]@{GroupId = $o365group.ExternalDirectoryObjectId; GroupName = $o365group.DisplayName; TeamsEnabled = $false}
break;
}
"403" {
[pscustomobject]@{GroupId = $o365group.ExternalDirectoryObjectId; GroupName = $o365group.DisplayName; TeamsEnabled = $true}
break;
}
default {
Write-Error ("Unknown ErrorCode trying to 'Get-TeamChannel -GroupId {0}' :: {1}" -f $o365group, $ErrorCode)
}
}
}
}
Sample output from the snippet:
GroupId GroupName TeamsEnabled
------- --------- ------------
399cd314-1c6d-4c8d-ad03-54a0ac07cc93 Test Group 1 False
6a175eba-02d9-44a7-b49e-ac71d7aeeaf7 Test Team True
As with any example code, please test prior to production use.
