How to Automate Office 365 Tasks with PowerShell

Jun 18, 2023

PowerShell is a powerful scripting language that can be used to automate a range of tasks in Office 365. With PowerShell, administrators can automate repetitive tasks, improve productivity, and reduce the risk of errors. In this post, we'll explore how to use PowerShell to automate Office 365 tasks, and provide two sample scripts that you can use to get started.

  1. Connecting to Office 365: Before you can start using PowerShell to manage Office 365, you need to connect to your Office 365 tenant. This is done using the Connect-MsolService cmdlet, which authenticates you to Office 365 and creates a connection to the service. Once you're connected, you can start running PowerShell cmdlets to automate tasks.
  2. Sample Script 1: Exporting Office 365 Mailbox Permissions - One common task that administrators need to perform is exporting mailbox permissions. This can be a time-consuming and error-prone task, but with PowerShell, it can be automated. Here's a sample script that exports mailbox permissions for a specified mailbox to a CSV file:
$Mailbox = "[email protected]" $FilePath = "C:\MailboxPermissions.csv" Get-MailboxPermission $Mailbox | Select User, AccessRights | Export-CSV $FilePath -NoTypeInformation

3. Sample Script 2: Removing Inactive Office 365 Users - Another common task is removing inactive users from Office 365. This can be a tedious task, but with PowerShell, it can be automated. Here's a sample script that removes users who haven't logged in for a specified number of days:

$DaysInactive = 90 $UserList = Get-MsolUser -All | Where-Object { $.LastPasswordChangeTimestamp -lt (Get-Date).AddDays(-$DaysInactive) -and $.BlockCredential -eq $false } foreach ($User in $UserList) { Remove-MsolUser -ObjectId $User.ObjectId -Force }


PowerShell is a powerful tool that can be used to automate Office 365 tasks and improve productivity. With the sample scripts provided in this post, you can get started with automating common tasks such as exporting mailbox permissions and removing inactive users. By using PowerShell to automate tasks, you can reduce the risk of errors and free up time for more important tasks.