4 Office 365 Migration Types
There are four Office 365 migration types for you to consider.
1. Staged Migration
An Office 365 staged migration moves everything over in batches. It transitions all of your resource mailboxes and existing users from Exchange 2003 or 2007 to Exchange Online.
It’s a great method for medium-sized companies (especially those with over 2,000 mailboxes) that are currently using on-premises Microsoft Exchange 2003 or 2007. It is not, unfortunately, available for organizations using Exchange 2010 or 2013.
A staged migration moves mailboxes in batches over a determined period. It requires the use of the Directory Synchronization tool, which replicates your accounts from the on-premises Active Directory database. By the end of the process, all mailboxes will be hosted in Office 365.
2. Cutover Migration
A cutover migration is an immediate transition from an on-premises Exchange system to Office 365. All your resources are migrated at once, including mailboxes, contacts and distribution groups. With this migration, you cannot select specific objects to migrate, and once the move is complete, everyone will have an Office 365 account.
3. Hybrid Migration
The Office 365 hybrid migration allows you to integrate Office 365 with your on-premises Exchange servers and your existing directory services. As a result, you can synchronize and manage user accounts for both environments.
With a hybrid migration, you’re able to move mailboxes in and out of Exchange Online. You can even pick and choose which mailboxes to keep on-premises and which to migrate to Office 365. Plus, you can synchronize passwords and introduce single sign-on to your team to make it easier to log in to both environments.
4. IMAP Migration
While the other three Office 365 migration types depend solely on Exchange, an IMAP (Internet Message Access Protocol) migration allows you to transition users from Gmail or any other email system that supports IMAP migration.
An IMAP migration pulls information from your source mailboxes and hands it over to Office 365. However, IMAP migration doesn’t transition anything other than email. Calendar items, tasks and contacts all stay in the original inbox and have to be migrated manually by the user. Get to know more about Microsoft 365 migration in detail.
I hope this information will be helpful!