Performing a migration from the Exchange Admin Center

Performing a migration from the EAC is relatively simple, as long as the Exchange Hybrid configuration has been validated and is functional.

Let's start off by recapping what we learned from Chapter 6, Performing for a Simple Migration, and define different parts of the migration process and the terminology used. This will help to make the next instructions a lot easier to follow.

Migration batches

When we migrate user mailboxes into Office 365, we create a migration batch that lets us define the type of migration, select the users to migrate, and define what we want to happen once the migration completes. Effectively, this lets us migrate the users in manageable batches and use different settings if required.

When we create a batch, we have an option to suspend the migration just before it completes. This enables us to migrate the mailboxes of several users but not actually transfer the mailboxes to Office 365 until we are ready. Once...