Before describing Existing Office 365 Administrator and User experience during the EHA Migration, please know that Companies that are using a hybrid setup (defined below) for Office 365 are not yet eligible to have their Exchass="r3 fiji-r3">
Before describing Existing Office 365 Administrator and User experience during the EHA Migration, please know that Companies that are using a hybrid setup (defined below) for Office 365 are not yet eligible to have their Exchass="r3 fiji-r3">
If all of your mailboxes are using Office 365, then the following information describes changes that Administrators and Users will experience during the EHA Migration:
Licensing: Your Office 365 licenses may be upgraded. Migrating EHA to Office 365 requires enabling the Advanced Archiving features in Office 365 which is available in Exchange Online Plan 2 (EP2). For more information about licensing grants for existing EHA customers please read EHA-to-Office 365: Understnading your Licensing Options.
Impact of EHA migration on your Office 365 Global Address List (GAL): If a mailbox does not already exist in Exchange Online, one will be created for each provisioned EHA user that transitions from EHA. Each of these users will be appear in the GAL.
Unprovisioned Users: Before your transition you should review your EHA user list and make sure all users you expect to be in EHA exist. See the information on the Unprovisioned Users page located here which discusses EHA Unprovisioned Users.
User Experience: Existing Office 365 users will experience minimal impact during the migration of EHA. Your Office 365 users who have not had their Office 365 Archive folders enabled will now be archive enabled which means the user will see their Archive folders in their Outlook folder list. Also, the EHA messaging content will begin to appear in their Office 365 Archive folders as messages are migrated from EHA to Office 365. This migration does not impact the Inbox and folders in the user’s primary Office 365 mailbox.
Administration: Administrators will see that migration has made two configuration changes to their EHA-migrated Office 365 users – assuming that these settings were not already configured: