Regardless of your reasons behind switching from Microsoft Office 365 to Google Workspace, it is important to note that there are two ways to migrate data:
- Using Data Migration Service (DMS);
- Using a third-party tool.
Data Migration Service is inbuilt in G Suite, so it is free if you have a paid account. The process is easy but can be time-consuming because of the large amount of data.
Note: if you have more than 5 people to migrate, with DMS the process can be quite a time-consuming task. Also, we want you to be aware that the Data Migration Service has some restrictions. It can’t migrate files from OneDrive. You’ll have to move those files manually or using a third-party tool. Plus, with Data Migration you have to pull over a particular type of data (email/contacts) one at a time, not altogether.
The second option is to use a third-party backup and/or migration tool. If you back up your data (which we strongly advise you to do), you can use the backup tool as the migration service for all saved data. These tools simplify the migration, especially if you need to transfer many users at once.
In this tutorial, we migrate email from Office 365 to Gmail, but the process of migrating Calendars and Contacts is the same.
Migrate O365 data to G Suite in a few clicks
Table of Contents
Migration from Office 365 to G Suite Using Data Migration Service
At this point, we assume by default that, by this point, you have already created the destination G Suite account(s). Let’s get started!
Step 1. Set up roles for Office 365 accounts
This is a pre-migration step that makes migration possible. When you are migrating your data, you need to provide your credentials from Office 365 accounts to G Suite Data Migration Service. For DMS to extract data, you need to assign some new roles for your O365 account. These roles are:
How to do that:
1. Log in to your Office account.
2. Go to the Admin panel. In the desktop version, go to apps and click on Security&Compliance. In the web version, click on Exchange.
3. Go to Permissions section.
4. In Admin roles block click on +. In the new window, fill out the Name field, go down to Roles and press on + again. Choose the first role (ApplicationImpersonation) and click Add, then repeat with the second one (ViewOnly-Configuration).
5. Click on Save.
6. Then, go to the User roles block. Click on + and add your account.
7. You don’t have to do this with all the accounts you are about to migrate data from – do this just for the account that G Suite will use to connect to Office 365.
8. Note that the process can take some time to take effect. Wait 10-20 minutes, and then you can proceed with the migration itself.
Step 2. Moving Mails, Calendars, and Contacts
So, let’s start office 365 cross tenant migration with emails.
1. Open your G Suite admin console. Go to Data Migration.
2. Chose Email.
3. In the Migration source field, select Microsoft Office 365.
4. In the Connection protocol field, chose Exchange web services. There will appear a new field where you need to put a web address of the migrating Outlook account.
5. In the Role account field, type the email address and password of the role account on your mail server.
6. Press Connect.
7. On the next page, you have to choose a date range and specific email folders to copy. Choose the options that make sense according to your needs.
8. Press Select Users.
9. On the new page, you have to specify the source account(s) to transfer data from, and the destination account to move data to.
10. Click Start.
It usually takes some time to see the percentage bar movement in the Status column. The amount of time needed to migrate the Office 365 mailbox to another tenant depend on the number of emails. For example, it may take an hour to move 2000 emails. If you have thousands of emails to migrate from different users, be patient, and occupy yourself with other things while waiting for migration to finish.
Migrating Data With a Third-Party Tool
If you want to streamline the migration process and protect your data from loss, a professional tool will do the job.
Get a Demo!
Have more questions about Spin functionality? Get them answered right away!
Here is how the domain migration process looks like in action with a tool like Spinbakup: