How to assign a Role to multiple users in Exchange Online

Introduction

This script is used to help administrator to query current role assignment policies and assign the selected policy to multiple mailboxes.

Scenarios

This script is used to help administrator to query current role assignment policies and assign the selected policy to multiple mailboxes.

Script

You can use this script in the following way.

1. Open Windows PowerShell.

2. Type the script path at the Windows PowerShell Console.

For example, type C:\Script\ ChangeRoleAssignmentEXO 

Here are some code snippets for your reference.

PowerShell
Edit|Remove
powershell
if($userOrgChoice -eq $($policy.count ))
{
    $mailboxlist = Get-Mailbox 
    foreach($mailbox in $mailboxlist)
    {
         Set-Mailbox $mailbox.PrimarySmtpAddress -RoleAssignmentPolicy $Policy[$usernewChoice].Name
    }
}
elseif(($userOrgChoice -le $Policy.Count) -and ($usernewChoice -le $Policy.Count))
{
    $mailboxlist = Get-Mailbox | Where { $_.RoleAssignmentPolicy -Eq $Policy[$userOrgChoice].Name }
    foreach($mailbox in $mailboxlist)
    {
         Set-Mailbox $mailbox.PrimarySmtpAddress -RoleAssignmentPolicy $Policy[$usernewChoice].Name
    }
}
else
{
    Write-Host "Please input a valid selection"
}

if($userOrgChoice -eq $($policy.count )) 
{ 
    $mailboxlist = Get-Mailbox  
    foreach($mailbox in $mailboxlist) 
    { 
         Set-Mailbox $mailbox.PrimarySmtpAddress -RoleAssignmentPolicy $Policy[$usernewChoice].Name 
    } 
} 
elseif(($userOrgChoice -le $Policy.Count) -and ($usernewChoice -le $Policy.Count)) 
{ 
    $mailboxlist = Get-Mailbox | Where { $_.RoleAssignmentPolicy -Eq $Policy[$userOrgChoice].Name } 
    foreach($mailbox in $mailboxlist) 
    { 
         Set-Mailbox $mailbox.PrimarySmtpAddress -RoleAssignmentPolicy $Policy[$usernewChoice].Name 
    } 
} 
else 
{ 
    Write-Host "Please input a valid selection" 
}

 

Examples

       Example1: Change the mailboxes’ role assignment policy from ‘Default’ to ‘Limited’.

ChangeRoleAssignmentEXO.ps1 -Credential $Cred

 

Result Screenshot:

 

 

Prerequisites

Exchange Online
Windows PowerShell 2.0