Plan for Exchange Online in Office 365
Applies to: Office 365 Deployment Guide for Enterprises
Topic Last Modified: 2013-08-23
Summary: Briefly describes prerequisite tasks and the timeframe for Exchange Online deployments.
This section of the deployment guide describes the tasks and processes associated with moving from your existing messaging system to Exchange Online. It assumes that you have implemented the Active Directory service on-premises and have created and maintain mail-enabled user accounts.
The timeframe required to deploy Exchange Online will depend on the complexity of your existing on-premises environment. For larger companies, deployment projects can typically be completed in 8 to 12 weeks. This timeframe may be extended by service request escalations and if larger average mailboxes sizes exist in a customer’s mail environment. Customer network bandwidth can also affect this timeframe.
The Exchange Online deployment tasks are focused on two activities:
Each of these activities is described briefly in the sections that follow. See the Exchange Online Preparation section for more in-depth information on these key deployment tasks.