Google Vault to Office 365 Migration Everything You Need to Know

  Mohit Kumar Jha
Mohit Kumar Jha   
Published: May 13th, 2025 • 8 Min Read
Direct migration of Google Vault to Office 365 is not possible natively. The manual method involves exporting Google Vault data (ideally as PST) and importing it to Office 365. Alternatively, an automated tool simplifies this, offering a direct, multi-stage process for a smoother, more efficient migration.

Lack of a direct bridge to conduct a Google Vault to Office 365 migration is a major hurdle for admins. A possible manual alternative is to download the Google Vault data in its default format(MBOX). Convert the said files (MBOX to PST) into an Office 365 acceptable format. Then, import the Portable Storage Tables into the M365 cloud.

However, there’s a shortcut method that combines these 3 stages into a single unified process. Before we discuss what that alternative is, let us check the feature set of Google Vault. We do this to ensure that there is no hidden function that can carry out a direct transfer, saving us all sorts of trouble.

What Features Does Google Vault Have to Offer?

• Archiving Emails and Chat

The user can customize the rules of retention. This lets you specify the retention period for emails and chats. Moreover, the admin can select the exact date to remove the user’s data.

• Searching Drive File

By using Vault, Google lets users search Drive results, including external file types, such as JPG, DOCX, PDF, etc.

• Searching Emails

This is the most powerful function and the most preferred feature useful in email investigations. With this, the user/investigator can search the particular email account, date, or keyword. Also, Google Vault supports Gmail-based Boolean searches and wild-card operators.

• Export

This is the feature that we will put to use to perform a Google Vault migration to Office 365. We export the search results of archived emails to a specific file format.

Now that we understand Google Vault’s features, let’s look at why users want to migrate away from it.

Reasons for Migrating Google Vault to Office 365

There are several reasons behind this operation, such as:

  • Unified ecosystem integration with Office 365’s suite of applications.
  • Enhanced collaboration tools such as Teams, SharePoint, and real-time co-authoring.
  • Familiarity with Microsoft’s interface and tools for streamlined user adoption.
  • Robust security features, compliance tools, and advanced threat protection.
  • Access to advanced productivity tools like Power BI, Power Automate, and Dynamics 365.
  • Scalability and customizable subscription plans catering to varied business needs.
  • Simplification through the consolidation of services and reduced maintenance costs.
  • Google Vault migration to O365 gives access to the support & resources of the destination platform.
  • Seamless integration with existing on-premises Microsoft infrastructure.
  • Continuous updates and a future roadmap for ongoing advancements and innovations.

Now, let’s understand the different ways to migrate Google Vault to Office 365.

Different Techniques for Google Vault to Office 365 Migration 

There are multiple methods present to facilitate the migration of data from Google Vault to Office 365. Users can either choose a manual approach, which is time-consuming and tiring, or opt for an automated professional approach. Let’s discuss both approaches step by step in the coming sections.

Method: 1 – Manual Steps for Google Vault to Office 365 Migration

The steps to migrate Google Vault to Office 365 manually are as follows:

  1. Export the Google Vault in PST file format.
  2. Import Outlook data file to Office 365.

Part 1. Export the Google Vault

Here, the user must perform the following steps mentioned below:

  • Step 1. Open the Google Vault account and click on Matters.Google Vault interface with the 'Matters' menu item highlighted, initiating a data export process.
  • Step 2. Tap Create to make a new matter for Google Vault to M365 migration.
  • Step 3. Type in a suitable name(GV-O365) and hit Create.Google Vault 'Create matter' dialog box with 'GV-O365' as the matter name and description fields.
  • Step 4. Select Gmail for email-only export.Google Vault search configuration screen, selecting 'Gmail' as the service for data export.
  • Step 5. Choose a data source from the dropdown options, including all data, held data, and unprocessed data.Google Vault search options, selecting 'All data' as the source for retrieving archived information.
  • Step 6. Within the Entry tab, you can select any one of the following: All accounts, specific accounts, or organisational units for export.
  • Step 7. Input the targeted email address for export data, apply filters if needed, and click Search.Google Vault search settings page: specifying search entities, like specific accounts, before initiating a search for export.
  • Step 8. Review your email data and select Save to proceed.
  • Step 9. Assign a name to the Save Query and confirm by clicking Ok.
  • Step 10. Use the Count option to tally the emails and mailboxes.
  • Step 11. Press Export.Google Vault search results page with the 'Export' button prominently displayed.
  • Step 12. Give a name to this exported file from Google Vault.
  • Step 13. You can continue with the default MBOX format or choose PST, the saving format, from the dropdown menu. Choosing PST here allows you to skip over the file format conversion stage. Google Vault export settings dialog, choosing 'PST' from the data format dropdown menu for download.
  • Step 14. Press Download to get the Google Vault data in an acceptable M365 format.
    Google Vault export completion screen showing export details and a 'Download' button for the PST file.

Step 2. Import Intermediate File to Office 365

Outlook PST files can be imported to the Office 365 drive using the shipping or network upload, or even with the help of the classic Outlook client.

Note: If you are looking to migrate through the manual way, then it is recommended to go through these points for successful migration:

  • Data Verification – Since the manual method does not provide you with any report of migration. Hence, you should perform thorough data verification to ensure the integrity of the transferred data from Google Vault to Office 365, Once the migration is completed.
  • Backup Strategies – In the manual method you do not get any retry or re-run migration option. Therefore, you should implement backup strategies before, during, and after migration to mitigate potential data loss risks.
  • User Training – As the manual method involves the human interface, therefore you should provide user training and support to ensure a smooth transition and utilization of Office 365 features.

Method: 2 – Use Automated Tool to Migrate Google Vault to Office 365 Step By Step

Use the SysTools Google Vault to Office 365 Migration Tool to migrate Google Vault data of multiple users directly into the Office 365 user account in just a few clicks. This is a tool especially customized for admins to ease their migration tasks. Using this admin can migrate all or selected emails from the G-Vault to the designated O365 account.

The demo version of the tool comes with 2 free user licenses for testing. Perform the test on a dummy account before proceeding with the complete organization data migration.

 Download Now  Purchase Now

Steps to Directly Migrate Google Vault to Office 365 

Step 1. From the Migration Configuration section of the tool, select the source as “Google Vault” and the Destination as “Office 365”. 

 Setup screen selecting 'Google Vault' as source and 'Office 365' as destination.

Step 2. Go to the Workload Section to set the date-range filter for the emails for selective data migration (optional)

Google Vault to Office 365 migration tool's workload selection, applying a date-range filter for email migration.

Step 4. Now move to the Source tab, you need to enter the Google Vault Admin ID, and project details (to know about project details, click on the “Project Creation Steps” link in the same window below). After filling in all the fields, click on the Validate button to authenticate the entered details.

Source platform (Google Vault) authentication details including Admin ID and Project ID.

Step 5. Then, go to the Destination tab to provide the details of the Office 365 Account, such as Admin ID and application ID. Once done, press Validate to authenticate the details.

Destination platform (Office 365) authentication details including Admin ID and Application ID.

Step 6. For mapping the source and destination platforms, go to the User tab to select the option. Here, you will get these options:

  • Fetch
  • Import
  • Download

User mapping tab with 'Fetch Users', 'Import Users', and 'Download Template' options for Google Vault to Office 365 migration

Step 7. After completing the mapping successfully, click on the Validate button to authenticate every user account.

 User accounts listed for validation after mapping source to destination.

Step 8. Finally, click on the Start Migration button to migrate Google Vault to Office 365.

Google Vault to Office 365 migration tool dashboard with the 'Start Migration' button highlighted, initiating the data transfer.

Step 9. After completion of migration, the tool offers the option to Download Reports in two modes: Summary and detailed. Download these reports to see the successfully migrated items.

That’s it! In just less than 10 steps, you will be able to migrate all users’ Vault emails directly into the new Office 365 user account. You can now log into Office 365 to check for the migrated data.

Conclusion

Migrating from Google Vault to Office 365 offers an evolution toward a unified, collaborative, and secure ecosystem. Additionally, the users can leverage Microsoft’s familiar interface, advanced tools, and robust security features.

The manual process for performing this change of platforms involves a manual export + import mechanism. If you want a fast and easy way to view the Vault data in Office 365, use the tool. It overcomes all the limitations of the manual method and gives an error-free result.

Frequently Asked Questions

Q. I have created a new export request in Google Vault. Will it remain there perpetually?

No, the export becomes unavailable after a while; every export request, regardless of the volume of data in it, has a preset expiry date, which is t-15 days from the availability of the export. If the admin/ elevated user fails to download the data in this time period, the export expires. You will have to create a new export from scratch.

Q. Do I need to create a new matter every time I want a new export in Google Vault?

If all the preset values are the same, then just make a new export request; no need to bother with a new matter creation. Moreover, Google Vault matters are quite flexible, you can toggle just a few settings and change the export as required.

Q. What to do if I forgot to choose the export format as PST and continued with MBOX, what are my options?

If the export has just begun, you can cancel it and redo the export creation with PST. Otherwise, use a professional MBOX to PST converter to change the file format, and continue with the rest of the steps.