diff --git a/Find Teams Channels with External Users/FindTeamsChannelsWithExternalMembers.ps1 b/Find Teams Channels with External Users/FindTeamsChannelsWithExternalMembers.ps1
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+<#
+=============================================================================================
+Name:           Find All Team Channels with External Members in Microsoft 365   
+Version:        1.0
+Website:        o365reports.com
+
+Script Highlights:  
+~~~~~~~~~~~~~~~~~
+1. The script exports output into 2 CSV files: 
+     -Detailed report: Teams Channels and their external user details
+     -Summary report: Teams Channels and their guest users count 
+2. Exports external users across all Teams channel types, such as private, shared, and standard.
+3. Exports all team channels an external user is a member of.
+4. Automatically install the Microsoft Graph PowerShell module (if not installed already) upon your confirmation.
+5. The script can be executed with an MFA-enabled account too.
+6. It can be executed with certificate-based authentication (CBA) too. 
+7. The script is schedular-friendly.
+
+For detailed Script execution:  https://o365reports.com/2025/02/04/get-all-teams-channels-with-external-members/
+============================================================================================
+#>
+
+Param 
+( 
+    [Parameter(Mandatory = $false)] 
+    [string]$TeamName,
+    [string]$ChannelName,
+    [string]$MemberUPN,
+    [ValidateSet(
+        'Standard',
+        'Private',
+        'Shared'
+    )]
+    [string]$ChannelType,
+    [string]$TenantId,
+    [string]$ClientId,
+    [string]$CertificateThumbprint
+) 
+
+$SummaryReport ="$(Get-Location)\TeamsChannelsWithExternalMembers_SummaryReport_$((Get-Date -format yyyy-MMM-dd-ddd` hh-mm` tt).ToString()).csv" 
+$DetailedReport ="$(Get-Location)\TeamsChannelsWithExternalMembers_DetailedReport_$((Get-Date -format yyyy-MMM-dd-ddd` hh-mm` tt).ToString()).csv" 
+
+# Function to connect to Microsoft Graph
+function Connect_ToMgGraph {
+    # Check if Microsoft Graph module is installed
+    $MsGraphModule = Get-Module Microsoft.Graph -ListAvailable
+    if ($MsGraphModule -eq $null) {
+        Write-Host "`nImportant: Microsoft Graph module is unavailable. It is mandatory to have this module installed in the system to run the script successfully." 
+        $confirm = Read-Host "Are you sure you want to install Microsoft Graph module? [Y] Yes [N] No"
+        if ($confirm -match "[yY]") {
+            Write-Host "Installing Microsoft Graph module..."
+            Install-Module Microsoft.Graph -Scope CurrentUser -AllowClobber
+            Write-Host "Microsoft Graph module is installed in the machine successfully" -ForegroundColor Magenta 
+        } else {
+            Write-Host "Exiting. `nNote: Microsoft Graph module must be available in your system to run the script" -ForegroundColor Red
+            Exit
+        }
+    } 
+
+    Write-Host "Connecting to Microsoft Graph..."
+    
+    if (($TenantId -ne "") -and ($ClientId -ne "") -and ($CertificateThumbprint -ne "")) {
+        # Use certificate-based authentication if TenantId, ClientId, and CertificateThumbprint are provided
+        Connect-MgGraph -TenantId $TenantId -AppId $ClientId -CertificateThumbprint $CertificateThumbprint -NoWelcome 
+    } else {
+        # Use delegated permissions (Scopes) if credentials are not provided
+        Connect-MgGraph -Scopes "Team.ReadBasic.All", "Channel.ReadBasic.All", "ChannelMember.Read.All" -NoWelcome 
+    }
+
+    $Script:MgContext = Get-MgContext
+
+    # Verify connection
+    if (($Script:MgContext) -ne $null) {
+        Write-Host "Connected to Microsoft Graph PowerShell using account: $(($Script:MgContext).Account)" 
+    } else {
+        Write-Host "Failed to connect to Microsoft Graph." -ForegroundColor Red
+        Exit
+    }
+}
+
+# Print Summary Report
+Function Print_SummaryReportContent {
+    $Result = @{'Team Name'=$TeamDisplayName; 'Channel Name'=$ChannelDisplayName; 'Membership Type'=$MembershipType; 'External Members Count'=$ExternalMembersCount; 'External Members'=$ExternalMembers; 'Team Id'=$TeamId; 'Channel Id'=$ChannelId;} 
+    $Results = New-Object PSObject -Property $Result 
+    $Results | Select-Object 'Team Name', 'Channel Name', 'Membership Type', 'External Members Count', 'External Members', 'Team Id', 'Channel Id' | Export-Csv -Path $SummaryReport -Notype -Append
+}
+
+# Print Detailed Output
+Function Print_DetailedReportContent {
+    $Result = @{'Team Name'=$TeamDisplayName; 'Channel Name'=$ChannelDisplayName; 'Membership Type'=$MembershipType; 'External Member Name'=$ExternalMemberName; 'External Member Email'=$ExternalMemberEmail; 'External Member Id'=$ExternalMemberGuid;} 
+    $Results = New-Object PSObject -Property $Result 
+    $Results | Select-Object 'Team Name', 'Channel Name', 'Membership Type', 'External Member Name', 'External Member Email', 'External Member Id'| Export-Csv -Path $DetailedReport -Notype -Append
+}
+
+# Connecting to the Microsoft Graph PowerShell Module
+Connect_ToMgGraph
+
+# Get all teams channels with external members in Microsoft 365
+$ProcessedTeamsCount = 0
+$TeamsChannelsWithExternalMembersCount = 0
+$TenantId = ($Script:MgContext).TenantId
+
+if (!([string]::IsNullOrEmpty($TeamName))) { $TeamFilter = "displayName eq '$($TeamName)'" }
+
+if (!([string]::IsNullOrEmpty($ChannelName))) { 
+    if (!([string]::IsNullOrEmpty($TeamName))) {
+        $ChannelFilter = "displayName eq '$($ChannelName)'" 
+    }
+    else {
+        Write-Host "`nError: TeamName param is mandatory to filter based on Channels." -ForegroundColor Red
+        Exit
+    }
+}
+
+Get-MgTeam -Filter "$($TeamFilter)" -All | ForEach-Object {
+    $TeamId = $_.Id
+    $TeamDisplayName = $_.DisplayName
+    $ProcessedTeamsCount++
+
+    Get-MgTeamChannel -Filter "$($ChannelFilter)" -All -Team $TeamId | ForEach-Object {
+        $ChannelId = $_.Id
+        $ChannelDisplayName = $_.DisplayName
+        $MembershipType = $_.MembershipType
+        $ExternalMembersCount = 0
+        $ExternalMembers = @()
+        $ExternalUserFound = $false
+        Write-Progress -Activity "`n     Processed Teams count: $ProcessedTeamsCount"`n"  Processing Channel: $($ChannelDisplayName) from Team: $($TeamDisplayName)"
+
+        Get-MgTeamChannelMember -All -Team $TeamId -Channel $ChannelId | ForEach-Object {
+            $ExternalMemberTenantId  = $_.AdditionalProperties["tenantId"]
+            if (($ExternalMemberTenantId -ne $TenantId) -or ($_.Roles -contains "guest")){
+                $ExternalMemberName      = $_.DisplayName
+                $ExternalMemberEmail     = $_.AdditionalProperties["email"]
+                $ExternalMemberGuid      = $_.AdditionalProperties["userId"]
+
+                if (($MembershipType -notin @("standard","private"))) { $MembershipType = "shared" }
+
+                # Apply filters based on params
+                if (!([string]::IsNullOrEmpty($MemberUPN)) -and ($MemberUPN -ne $ExternalMemberEmail)) { return }
+                if (!([string]::IsNullOrEmpty($ChannelType)) -and ($ChannelType -ne $MembershipType)) { return }
+
+                $ExternalUserFound = $true
+                $ExternalMembersCount++
+                $ExternalMembers += $ExternalMemberEmail 
+                Print_DetailedReportContent
+            }
+        }
+        if ($ExternalUserFound) {
+            $ExternalMembers = $ExternalMembers -join ", "
+            $TeamsChannelsWithExternalMembersCount++
+            Print_SummaryReportContent
+        }
+    }
+}
+# Disconnect from Microsoft Graph
+Disconnect-MgGraph | Out-Null
+
+Write-Host `n~~ Script prepared by AdminDroid Community ~~`n -ForegroundColor Green
+Write-Host "~~ Check out " -NoNewline -ForegroundColor Green; Write-Host "admindroid.com" -ForegroundColor Yellow -NoNewline; Write-Host " to get access to 1900+ Microsoft 365 reports. ~~" -ForegroundColor Green
+
+# Open output file after execution 
+if((Test-Path -Path $DetailedReport) -eq "True") {
+    Write-Host `n"$TeamsChannelsWithExternalMembersCount teams channels are found with external members." 
+    Write-Host `n"  The summary report available in: " -NoNewline -ForegroundColor Yellow; Write-Host $SummaryReport
+    Write-Host `n"  The detailed report available in: " -NoNewline -ForegroundColor Yellow; Write-Host $DetailedReport
+	$Prompt = New-Object -ComObject wscript.shell  
+    $UserInput = $Prompt.popup("Do you want to open output files?",` 0,"Open Output File",4)  
+    If ($UserInput -eq 6) {  
+        Invoke-Item "$SummaryReport"
+        Invoke-Item "$DetailedReport"  
+    } 
+}
+else {
+    Write-Host `n"No teams channels are found with external members." -ForegroundColor Red
+}
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