From 14adde3bb61ab11f1603cd3d698abc3b7135b105 Mon Sep 17 00:00:00 2001
From: AdminDroid <49208841+admindroid-community@users.noreply.github.com>
Date: Wed, 18 May 2022 19:36:30 +0530
Subject: [PATCH] Get Office 365 Groups Storage Size Report

Get Office 365 Groups Storage Size Report
---
 .../GetOffice365GroupsStorage.ps1             | 149 ++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100644 Get Office 365 Groups Storage Size Report/GetOffice365GroupsStorage.ps1

diff --git a/Get Office 365 Groups Storage Size Report/GetOffice365GroupsStorage.ps1 b/Get Office 365 Groups Storage Size Report/GetOffice365GroupsStorage.ps1
new file mode 100644
index 0000000..e731635
--- /dev/null
+++ b/Get Office 365 Groups Storage Size Report/GetOffice365GroupsStorage.ps1	
@@ -0,0 +1,149 @@
+<#
+=============================================================================================
+Name:           Get storage used by Office 365 groups
+Description:    This script find Office 365 groups' size and exports the report to CSV file
+Version:        1.0
+Website:        o365reports.com
+For detailed script execution: https://o365reports.com/2022/05/18/get-the-storage-used-by-office-365-groups-using-powershell/
+============================================================================================
+#>
+#PARAMETERS
+param
+( 
+   [Parameter(Mandatory = $false)]
+   [Switch] $NoMFA,
+   [String] $UserName = $null, 
+   [String] $Password = $null,
+   [String] $TenantName = $null #(Example : If your tenant name is 'contoso.com', then enter 'contoso' as a tenant name )
+)
+
+#Check for SharePoint PnPPowerShellOnline module availability
+$PnPOnline = (Get-Module PnP.PowerShell -ListAvailable).Name
+if($PnPOnline -eq $null)
+{ 
+  Write-Host "Important: SharePoint PnP PowerShell module is unavailable. It is mandatory to have this module installed in the system to run the script successfully." 
+  $Confirm= Read-Host Are you sure you want to install module? [Y] Yes [N] No  
+  if($Confirm -match "[yY]")
+  { 
+    Write-Host "Installing SharePoint PnP PowerShell module..." -ForegroundColor Magenta
+    Install-Module PnP.Powershell -Repository PsGallery -Force -AllowClobber 
+    Import-Module PnP.Powershell -Force
+    #Register a new Azure AD Application and Grant Access to the tenant
+    Register-PnPManagementShellAccess
+  } 
+  else
+  { 
+    Write-Host "Exiting. `nNote: SharePoint PnP PowerShell module must be available in your system to run the script" 
+    Exit 
+  }  
+}
+ 
+
+#Check for ExchangeOnline module availability
+$Exchange = (Get-Module ExchangeOnlineManagement -ListAvailable).Name
+if ($Exchange -eq $null)
+{
+  Write-Host "Important: Exchange Online PowerShell module is unavailable. It is mandatory to have this module installed in the system to run the script successfully."  
+  $Confirm = Read-Host Are you sure you want to install module? [Y] Yes [N] No  
+  if ($Confirm -match "[yY]") 
+  { 
+    Write-Host "Installing ExchangeOnlineManagement module" -ForegroundColor Magenta
+    Install-Module ExchangeOnlineManagement -Repository PSGallery -AllowClobber -Force
+    Import-Module ExchangeOnlineManagement -Force
+  }
+  else
+  { 
+    Write-Host "Exiting. `nNote: ExchangeOnline PowerShell module must be available in your system to run the script." 
+    Exit 
+  }
+}
+
+
+#Connecting to ExchangeOnline And SharePoint PnPPowerShellOnline module.......
+Write-Host "Connecting to ExchangeOnline and SharePoint PnPPowerShellOnline module..." -ForegroundColor Cyan
+#Authentication using non-MFA
+if($NoMFA.IsPresent)
+{
+ #Storing credential in script for scheduling purpose/ Passing credential as parameter
+ if(($UserName -ne "") -and ($Password -ne ""))
+ { 
+  $SecuredPassword = ConvertTo-SecureString -AsPlainText $Password -Force
+  $Credential  = New-Object System.Management.Automation.PSCredential $UserName,$SecuredPassword
+ }
+ else
+ {
+  $Credential= Get-Credential -Credential $null
+ }
+ if($TenantName -eq "")
+ {
+  $TenantName = Read-Host "Enter your Tenant Name to complete the proccess (Example : If your tenant name is 'contoso.com', then enter 'contoso' as a tenant name )  "
+ }
+  
+  Connect-PnPOnline -Url https://$TenantName.sharepoint.com/ -Credentials $Credential
+  Connect-ExchangeOnline -Credential $Credential
+}
+#Authentication using MFA
+else
+{
+  $TenantName = Read-Host "Enter your Tenant Name to complete the proccess (Example : If your tenant name is 'contoso.com', then enter 'contoso' as a tenant name )  " 
+  Connect-PnPOnline -Url https://$TenantName.sharepoint.com/ -Interactive   
+  Connect-ExchangeOnline 
+}
+
+
+
+
+#Get storage used by office 365 groups...
+Write-Host "Getting office 365 groups storage..."
+$OutputCsv=".\Office365GroupsStorageSizeReport_$((Get-Date -format MMM-dd` hh-mm` tt).ToString()).csv"
+#Getting all sites which have an underlying Microsoft 365 group
+$GroupSites = Get-PnPTenantSite -GroupIdDefined $true | Select-Object StorageUsageCurrent, StorageQuota, Url  
+$GroupCount = 0
+
+Get-UnifiedGroup -ResultSize unlimited | ForEach-Object {
+ 
+ $GroupName = $_.DisplayName
+ Write-Progress -Activity "Processed Group Count : $GroupCount" "Currently Processing Group : $GroupName"
+ $SharePointSiteUrl = $_.SharePointSiteUrl
+ if($SharePointSiteUrl -ne $null)
+ {   
+   $GroupSite = $GroupSites | Where-Object { $_.Url -eq $SharePointSiteUrl } 
+   $GroupStorage = @{'Group Name' = $GroupName; 'Group Email' = $_.PrimarySmtpAddress; 'Group Privacy' = $_.AccessType;'Storage Used (GB)' = [math]::round($GroupSite.StorageUsageCurrent/1024,4); 'Storage Limit (GB)' = $GroupSite.StorageQuota/1024;  'Created On' = $_.WhenCreated}  
+ }
+ else
+ {
+   $GroupStorage = @{'Group Name' = $GroupName; 'Group Email' = $_.PrimarySmtpAddress; 'Group Privacy' = $_.AccessType;'Storage Used (GB)' = "Group not used yet"; 'Storage Limit (GB)' = "Group not used yet";  'Created On' = $_.WhenCreated} 
+ }
+ $ExportGroupStorage = New-Object PSObject -Property $GroupStorage
+ $ExportGroupStorage | Select-Object 'Group Name','Group Email','Group Privacy','Storage Used (GB)','Storage Limit (GB)','Created On' | Export-Csv -path $OutputCsv -NoType -Append
+ $GroupCount++
+}
+
+#Groupcount details
+if($GroupCount -ne 0)
+{
+ Write-Host "$GroupCount Office 365 groups found in this organization"
+}
+else
+{
+ Write-Host "There is no office 365 group found in your organization"
+}
+
+
+#Open output file after execution 
+if((Test-Path -Path $OutputCsv) -eq "True") 
+{ 
+  Write-Host "The office 365 groups storage report available in : $OutputCsv" -ForegroundColor Green 
+  $Prompt = New-Object -ComObject wscript.shell    
+  $UserInput = $Prompt.popup("Do you want to open output file?",` 0,"Open Output File",4)    
+  If ($UserInput -eq 6)    
+  {    
+   Invoke-Item "$OutputCsv"    
+  }  
+} 
+
+#Disconnect the SharePoint PnPPowerShellOnline module
+Disconnect-PnPOnline
+
+#Clean up session
+Get-PSSession | Remove-PSSession
\ No newline at end of file