Identifying Duplicate Microsoft 365 Group Names
Identifying duplicate M365 Group to ensure each group has a unique name can help to reduce confusion for end users.
Reshmee AucklooSummary
It is possible to create M365 Groups and Teams with the same name, and there is currently no built-in way to prevent this. Having duplicate names can cause confusion and increase security, governance and compliance risks.
Prerequisites
- PnP PowerShell https://pnp.github.io/powershell/
- The user account that runs the script must have Global Admin administrator access or Entra ID Admin role.
param (
[Parameter(Mandatory = $true)]
[string] $domain
)
Clear-Host
$dateTime = (Get-Date).toString("dd-MM-yyyy-hh-ss")
$invocation = (Get-Variable MyInvocation).Value
$directorypath = (Split-Path $invocation.MyCommand.Path) + "\"
$exportFilePath = Join-Path -Path $directorypath -ChildPath $([string]::Concat($domain,"-duplicateM365_",$dateTime,".csv"));
$adminSiteURL = "https://$domain-Admin.SharePoint.com"
Connect-PnPOnline -Url $adminSiteURL
# Retrieve all M365 groups
$groups = get-PnPMicrosoft365Group
# Find duplicate group names
$duplicateGroups = $groups | Group-Object DisplayName | Where-Object { $_.Count -gt 1 }
# Create a report
$report = @()
foreach ($group in $duplicateGroups) {
foreach ($item in $group.Group) {
$report += [PSCustomObject]@{
DisplayName = $item.DisplayName
GroupId = $item.Id
Mail = $item.Mail
}
}
}
# Export the report to a CSV file
$report | Export-Csv -Path $exportFilePath -NoTypeInformation
Disconnect-PnPOnlineSource Credit
Sample first appeared on Identifying Duplicate Microsoft 365 Group Names
Contributors
| Author(s) |
|---|
| Reshmee Auckloo |
Disclaimer
THESE SAMPLES ARE PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.
Tool documentation & references
- Want to learn more about PnP PowerShell and the cmdlets
Check out the PnP PowerShell site to get started and for the reference to the cmdlets.
