diff --git a/SharePointOnline/ListAllSitesPnP.ps1 b/SharePointOnline/ListAllSitesPnP.ps1
new file mode 100644
index 0000000..ef03580
--- /dev/null
+++ b/SharePointOnline/ListAllSitesPnP.ps1
@@ -0,0 +1,64 @@
+[CmdletBinding()]
+param(
+    [Parameter(Mandatory = $true, HelpMessage = "SharePoint admin center URL, e.g. https://contoso-admin.sharepoint.com")]
+    [ValidatePattern('^https://')]
+    [string]$AdminUrl,
+
+    [Parameter(HelpMessage = "Optional credential for unattended execution")]
+    [System.Management.Automation.PSCredential]$Credential,
+
+    [Parameter(HelpMessage = "Switch to use device code flow instead of interactive login")]
+    [switch]$UseDeviceCode,
+
+    [Parameter(HelpMessage = "Optional CSV file path to export site inventory")]
+    [string]$OutputPath
+)
+
+try {
+    if (-not (Get-Module -ListAvailable -Name PnP.PowerShell)) {
+        throw "PnP.PowerShell module is not installed. Install it with 'Install-Module PnP.PowerShell'."
+    }
+
+    Import-Module PnP.PowerShell -ErrorAction Stop
+}
+catch {
+    throw "Unable to load PnP.PowerShell module: $($_.Exception.Message)"
+}
+
+try {
+    Write-Verbose "Connecting to tenant via $AdminUrl"
+
+    if ($Credential) {
+        Connect-PnPOnline -Url $AdminUrl -Credentials $Credential -ErrorAction Stop
+    }
+    elseif ($UseDeviceCode) {
+        Connect-PnPOnline -Url $AdminUrl -DeviceLogin -ErrorAction Stop
+    }
+    else {
+        Connect-PnPOnline -Url $AdminUrl -Interactive -ErrorAction Stop
+    }
+
+    Write-Host "Connected to $AdminUrl" -ForegroundColor Green
+
+    $sites = Get-PnPTenantSite -Detailed -ErrorAction Stop | Sort-Object Url
+
+    if (-not $sites) {
+        Write-Warning "No sites returned. Ensure the account has tenant admin permissions."
+        return
+    }
+
+    $siteSummary = $sites | Select-Object Url, Template, Owner, StorageUsageCurrent, LastContentModifiedDate
+
+    $siteSummary | Format-Table -AutoSize
+
+    if ($OutputPath) {
+        $siteSummary | Export-Csv -Path $OutputPath -NoTypeInformation -Encoding UTF8
+        Write-Host "Exported site inventory to $OutputPath" -ForegroundColor Cyan
+    }
+}
+catch {
+    Write-Error "Failed to retrieve sites: $($_.Exception.Message)"
+}
+finally {
+    Disconnect-PnPOnline -ErrorAction SilentlyContinue | Out-Null
+}