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Is the data migration service right for my organization?

If your migration is complex or you need detailed logs, the data migration service might not be right for your organization. To compare migration products, go to the Google Workspace migration product matrix.

There are several points to consider before using the data migration service.

How many users you want to migrate

In most cases, the data migration service works best when migrating a group of 100 users or fewer. You can migrate more users at once, but you might see a drop in performance.

Your source account setup

Your source account must:

  • Have a TLS certificate. A third-party root certificate authority must sign and trust the certificate. A self-signed certificate is not sufficient. For more information, go to Set up your TLS certificate.
  • Be correctly set up before you begin migrating. The steps depend on where you’re migrating from. For details, go to Prepare your source account.

Where you're migrating from & what data

Source account Data that can be migrated


Exchange Online (Microsoft 365)

Exchange 2016

Exchange 2013

Exchange 2010

Exchange 2007

  • Email
  • Contacts
  • Calendar events
  • Calendar resources

In a single migration, you can migrate email, contacts, or calendars, but you can't migrate 2 or more of them at the same time. Migrate them separately.

If your Google Workspace edition is Essentials, you can only migrate calendar data and contacts. You can't migrate email.

Exchange 2003 or earlier

IMAP-based webmail providers, such as 1&1 IONOS, AOL, Apple iCloud, Bluehost, Yahoo!, or Zoho

Another Google Workspace account

A personal Gmail ( account

Other IMAP servers



HCL (formerly IBM) Domino server Email You can use the data migration service to move email data from HCL Notes to Google Workspace. However, we recommend using Google Workspace Migration for HCL Notes (GWMHN) for this task. Learn more

Ready to begin?

Set up your new Google Workspace account

Google, Google Workspace, and related marks and logos are trademarks of Google LLC. All other company and product names are trademarks of the companies with which they are associated.

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