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O365Synchronizer

O365Synchronizer is a PowerShell module that allows you to synchronize users/contacts to user mailboxes contact list. It can also be used to synchronize users between tenants as contacts or guests.

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Releasev1.0.3

Language: PowerShell Updated: 2026-03-27T08:42:17.0000000+00:00

Documentation

Install O365Synchronizer

Install O365Synchronizer from the PowerShell Gallery.

Install O365Synchronizer before trying the curated Microsoft 365 contact synchronization examples.

Install-Module -Name O365Synchronizer -Scope CurrentUser
Import-Module O365Synchronizer

The examples also require Microsoft Graph modules and permissions appropriate for reading users, reading org contacts, and writing personal contacts.