Migrate to Office 365
Applies to: Office 365 Enterprise
Topic Last Modified: 2013-02-01
The Migrate phase is primarily focused on the steps required to move user mailbox content from on-premises to Exchange Online.
The following are the key deployment tasks and events that your carry out in the Migrate phase:
Assign licenses to users
To access Office 365 service offerings, assign licenses to users through the Microsoft cloud services Portal. If you have not already done so, review the Activate User Licenses section of this guide.
Issue final communications to end users
Prior to the start of velocity migrations, send all users the necessary notifications and instructions they need to make the transition to Office 365 service offerings. See Migration timeline and sample email for Exchange Online for an example of messaging used in these communications.
Migrate mailbox data
Proceed with velocity mailbox migrations from on-premises mailboxes to Exchange Online using your selected migration tools and migration group schedule. See Move mailboxes to Office 365 in this section.
Migrate existing collaboration documents
Using third-party migration tools, move files and folders from your existing SharePoint environment to SharePoint Online. See Prepare to migrate to SharePoint Online.
Change DNS records
When all migrations are completed, change your DNS records (for example, MX and TXT records) to at your domain registrar. See Deploy hybrid Exchange Servers into a production environment in this section.
Configure mobile phones and devices for Office 365
Set up user mobile phones to access your email using the Exchange ActiveSync protocol, and ask users to install the appropriate Lync mobile client. See Set up mobile phones and devices in Office 365 in this section.
Perform post-migration service testing
After user provisioning and mailbox migrations are completed, you should perform comprehensive functionality testing of the Office 365 service offerings for which your organization has subscribed to ensure the services operate as described in the Office 365 for enterprises service descriptions.
See Post-deployment checklist for Office 365for an example test plan.