Example PowerShell that will permanently delete an Office 365 Group

You can permanently delete a SharePoint Online Office 365 Group from your Azure Portal. But if you prefer to use PowerShell, here is an example.

Install-Module -Name AzureAD 
$tenantUrl = "https://yoursite-admin.sharepoint.com/" 
$groupToDelete = "FACT" 
Connect-SPOService -Url $tenantUrl 
Write-Output "Connected to $tenantUrl" 
Get-AzureADMSDeletedGroup $groupToDelete | Write-Output "Group $groupToDelete was found" 
#Remove-AzureADMSDeletedDirectoryObject –Id $groupToDelete