G Suite to Office 365 Migration Guide
Important: When you sign in to MigrationWiz, you are redirected to the Getting Started page in MSPComplete. To get to a migration project created before April 4, 2017, click the Go to Projects button on the Getting Started Page. To
create a new project for the migration scenario documented in this article, go
to the Delivery Center and add a Mail: G Suite to Office 365 service to the customer. Read the Delivery Center article
for more information about adding services to a customer.
If you are migrating from multiple domains, repeat these steps for each domain.
G Suite as Source (read-only scopes):
https://mail.google.com/, https://www.google.com/m8/feeds, https://www.googleapis.com/auth/contacts.readonly, https://www.googleapis.com/auth/calendar.readonly, https://www.googleapis.com/auth/admin.directory.group.readonly, https://www.googleapis.com/auth/admin.directory.user.readonly, https://www.googleapis.com/auth/drive, https://sites.google.com/feeds/
Note: OAuth administrative credentials will not function properly with G Suite for Business Legacy free accounts. If a G Suite tenant is a G Suite for Business Legacy free account, end user credentials must be used. Refer to KB005124 for more information on migrating with end user credentials.
Ensure IMAP access is enabled for all users. For details on how to check this, refer to the Google support article
Ensure the folder size limits on IMAP folders have been removed for all users. For each user, click on the
gear icon >
Forwarding and POP/IMAP tab > Folder Size Limits > Select the radio button for Do not limit the number of messages in an IMAP folder (default). Note: This is an end user setting, which can only be set on a per-user basis. Therefore, we recommend that you send instructions to your end users to check this setting.
Export mailboxes to CSV file(s). From Google Admin portal > Click
Users > Click on
⁝ (3 vertical dots) > Download Users > Download All Users > Click
Create an administrator account in Office 365 to be used for migration, or use the global admin account for the tenant.
Set up accounts on Office 365 and assign licenses. These can be created in several ways:
For the Source endpoint:
this video to see a walk-through of the steps below.
Create the Mailbox Migration project. KB004380
Under Filtering, add: (^All Mail$|^All Mail/) KB005626
This will filter out the All Mail label from your migration passes, which will speed up your migration passes.
You will remove this folder filter before performing your final migration pass. These steps are included later in this section.
Set to use impersonation at Destination. Checkmark the
Use impersonation at Destination box.
Under Support/Support options, add:
Support/Support options, add:
StoreOverflowGooglePropertiesInNotesPrefix="enter your text here"
Under Support/Support options,