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About the Office 365 deployment guide


Applies to: Office 365 Enterprise

Topic Last Modified: 2013-10-17

Summary: Describes the scope of the Office 365 deployment guide and provides links to service descriptions, subscription plans, and customer responsibilities.

The Microsoft Office 365 Deployment Guide is intended to help you understand the requirements and workflows necessary in introducing Microsoft Office 365 for enterprises to your organization.

Office 365 brings together cloud versions of our most trusted communications and collaboration products with the latest version of our Microsoft Office Professional Plus desktop suite. The Microsoft Office 365 for enterprises solution includes the following cloud-based services:

  • Microsoft Exchange Online

  • SharePoint Online

  • Lync Online

  • Office 365 ProPlus

Detailed information about these Microsoft Office 365 for enterprises service offerings is available in separate service description articles that are available at on TechNet. Information about Office 365 subscription plans is available on the Office 365 plans page.

For information about Office 365 ProPlus, see Overview of Office 365 ProPlus.

This guide presents the deployment process for Office 365 in a way that explains both important deployment concepts and detailed deployment procedures. It is intentionally organized into sections that provide specific types of information for specific types of deployment personnel in your organization. Here is a quick overview of what is in this guide:

  • Deployment overview section. This section is a high-level look at the deployment and organizational requirements to deploy Office 365. It has valuable information for your IT decision makers, program managers, and technical implementation leads.

  • Plan and prepare sections. These sections describe the particular tasks and activities required to get ready and fully implement your Office 365 deployment. The tasks are generally presented in the order in which you address them during your deployment. Topics discussed in the Plan section that need more detail may recur in the Prepare section with instructions for carrying out a task. The Plan and Prepare sections contain information that will interest specific types of technology experts in your organization.

  • Migrate section. This section describes the tasks for moving your users’ mailboxes to the Office 365 environment so you can begin using Office 365 as part of your production environment.

Prerequisite knowledge:

Deployment of Office 365 is a multi-phased project that requires project management, technical engineering, and technical support backgrounds. For a detailed list of prerequisite technical knowledge, see Responsibilities for customers who deploy Office 365.

This guide focuses on Office 365 deployments that implement email coexistence in a hybrid deployment configuration with enterprise directory integration services such as directory synchronization and single sign-on. We strongly recommend that you use the Exchange Server Deployment Assistant for configuring Exchange hybrid deployments.

This guide does not address the following topics:

  • Office 365 sales activities and pre-deployment entrance criteria. Entrance criteria include the following activities:

    • Review of the Office 365 service descriptions to ensure solution alignment. Your organization should not move forward with its deployment until all aspects of the service have been evaluated for alignment with your existing business and IT requirements.

    • Review of your Active Directory environment. Your organization should be sure that your Active Directory complies with the requirements for Office 365. During your review, you should keep in mind that hybrid deployments only support email coexistence with a single Active Directory forest, and the directory synchronization service requires a support exception for synchronization of more than 50,000 users.

      You can use the OnRamp for Office 365 to assess how many total Active Directory objects, and specifically user objects, are stored in your Active Directory forest.
    • Purchase of Office 365 user licenses. To provision users for Office 365 services, your organization needs to have valid user licenses available to assign to users.

  • Office 365 operations activities that occur after deployment. Post-deployment operational information can be found in Help for admins on the Office 365 Help page.

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