Migrate Phase - Office 365 Deployment

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 Appendix F Sample Email Migration End-user Communications 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 Migrate Mailboxes 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 SharePoint Online Preparation.

• Change DNS records
  

When all migrations are completed, change your DNS records (for example, MX and TXT records) to at your domain registrar. See Change MX Record 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 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 Appendix G post-deployment services test planfor an example test plan.