Update-365ImmutableID

A powershell command that updates an Office365 Immutable ID for a nominated user from their corresponding AD User GUID

Usage:

Update-365ImmutableID -Username adusername -FQDN domain.com

Requires:

• Active Directory Powershell Module
• Microsoft Online Powershell Module (MSOL)

This script assumes, as is best practice for AD/365 Syncing, that the UPN of the Office365 User is the same as the AD user.

It's also possible to get input from a CSV file to process multiple users.

Example 1:

Connect-MSOLService
Import-CSV C:\path\UserFile.CSV | ForEach { C:\path\Update-365ImmutableID.ps1 -Username $_.Username -FQDN "domain.com"}

Example 2:

Connect-MSOLService
Import-CSV C:\path\UserFile.CSV | ForEach { C:\path\Update-365ImmutableID.ps1 -Username $_.Username -FQDN $_.FQDN}

Notes

• The script will need to have the Get-Credential command Remmed out.
• For the first example, the CSV file will be just a list of SAMAccountNames. eg. username
• For the second example, the CSV file will be a list of SAMAccountNames, and FQDNs. eg. username, FQDN