Office 365 Personal Archives to Office 365 Personal Archives Migration Guide

Introduction

• This is the complete onboarding task flow for personal archive mailboxes from Office 365 to personal archive mailboxes on Office 365.
• Complete each step in order. Links to corresponding Knowledge Base articles are provided.
• We recommend that the mailbox migration project is performed first, before migrating archives. For guidance, refer to the migration guide that matches your scenario.
  
  Examples:
  • If you are changing the domain name when migrating from Office 365 to a different Office 365 tenant, refer to the Office 365 to Office 365 Migration Guide - While Changing the Domain Name article.
  • If you are keeping the domain name when migrating from Office 365 to a different Office 365 tenant, refer to the Office 365 to Office 365 Migration Guide - While Keeping the Same Domain Name article.
• If a mailbox migration project has already been performed, the same administrative credentials that you used during your mailbox migration project can be used for this project, and it is likely that you have already performed all of the steps in each section, other than the MigrationWiz Steps. In that case, proceed to the MigrationWiz section of this guide.
• More information on Office 365 personal archives can be found in the How users access their archive mailboxes article from Microsoft.

Prepare the Source Exchange Environment

Note: If you have completed a mailbox migration project against this Source environment, these steps will already have been completed.

1. Set up an administrator account for migration on the Source Exchange mailbox server. Read the How do I create an administrator account for login? article.
2. EWS must be working on the Source Exchange server. Read the How do I verify if my OWA URL is correct? article.
3. Test mailbox access. Read the How do I test mailbox access? article.
4. Disable the Exchange throttling policy during migration. Read the How do I disable the throttling policy on Exchange? article.
   
   Notes:

• This is only relevant for Exchange 2010+. Exchange version 2007 and earlier do not have throttling policies.
• If you are running Exchange 2010 and later, we highly recommend disabling the Exchange throttling policy in order to speed up your migrations.
• Follow the instructions under Option 1 in the How do I disable the throttling policy on Exchange? article to disable throttling for just the admin account, rather than for all users.

Prepare the Destination Environment

Note: If you have completed a mailbox migration project against this Source environment, these steps will already have been completed.

1. Create an administrator account in Office 365 to be used for migration, or use the global admin account for the tenant. Read the How do I create an administrator account in Office 365, and then use this during migration? article.
2. Set up accounts on Office 365 and assign licenses. These can be created in several ways:

• Manually, one at a time. Read the Add users individually or in bulk to Office 365 article from Microsoft.
• By bulk import, via CSV file. Read the Add several users at the same time to Office 365 article from Microsoft.
• By PowerShell script. Read the Create user accounts with Office 365 PowerShell article from Microsoft.
• By DirSync, AAD Sync, or AAD connect. Read this very important Knowledge Base article before running synchronization. Read the How do I synchronize my Azure Active Directory objects to Office 365? article.

MSPComplete Steps

Note: If you have completed a mailbox migration project against this Source environment, these steps will already have been completed. The endpoints that were created for your mailbox migration project can be used for your personal archive migration project.

1. Create the customer. Read the View, Add, and Edit Your Customers article.
2. Create the Source and Destination endpoints. Read the View, Add, and Edit Customer Endpoints article.

MigrationWiz Steps

1. Create a Personal Archive Migration project.
   
   Important: Remember that this is a personal archive migration project. It is not a mailbox migration project. Read the How do I set up a document migration project in MSPComplete? article.

• Create the Personal Archive Migration project > Select the customer > Select the Source endpoint > Select the Destination endpoint.