Google Vault to Office 365 Migration

As a major provider of cloud-based services, Google has built a strong presence in email, communication, and data management with Gmail and Google Workspace (formerly G Suite). A key component of this ecosystem is Google Vault, an advanced eDiscovery and archiving solution designed to manage and preserve data from Gmail, Google Drive, Google Chat, Google Groups, and other services. It helps organizations meet compliance requirements, apply legal holds, perform audits, and maintain long-term data retention policies.

Although Google Vault is a dependable archiving solution, many organizations are migrating to Office 365 (Microsoft 365) due to business mergers, consolidation of IT systems, or the need to simplify compliance and licensing management. Office 365 provides a unified environment with enhanced security, enterprise-level compliance features, and smooth integration with services such as Outlook, OneDrive, SharePoint, and Teams. However, migrating large amounts of archived data from Google Vault to Office 365 requires proper planning to maintain compliance, preserve data integrity, and avoid operational disruptions.

Google Vault can export Gmail search results for downstream processing, including PST exports. EdbMails provides a PST-based migration solution for moving the exported Gmail message data into Office 365. Its user-friendly interface makes the migration easy to manage even for non-technical users, while the step-by-step wizard guides you through each stage with clear instructions and reduces the chances of errors. After the Vault Gmail data is exported to PST, EdbMails provides mailbox and folder mapping options to match the exported PST content with the required Office 365 target mailboxes.

EdbMails migrates supported Gmail message properties present in the exported PST, such as headers, timestamps, attachments, and the folder structure available in that export. Google Vault labels, holds, retention rules, matters, and permissions are not automatically recreated in Microsoft 365, so preserve the Vault metadata and configure target compliance policies separately. This is a PST-based Gmail archive migration workflow, not a direct IMAP migration from Google Vault.

1. Why migrate from Google Vault to Office 365?

   1. Enhanced Collaboration: Office 365 offers deep integration with a wide range of Microsoft and third-party applications, enabling teams to collaborate more effectively and streamline daily workflows.
   2. Unified Workspace: With Office 365, all your data, applications, and communication tools are accessible from a single platform, reducing the need to switch between multiple systems and improving overall productivity.
   3. Advanced Security: Microsoft continuously strengthens Office 365 with advanced security features and real-time updates. This proactive protection ensures your data is safe from the latest cyber threats.
   4. Built-in Compliance: Office 365 is designed to meet major global compliance standards such as GDPR, HIPAA, and ISO 27001, helping organizations easily maintain regulatory requirements and data governance.
   5. Flexible and Cost-Effective Plans: Office 365 offers scalable subscription options tailored to different business sizes and budgets, ensuring you get maximum value without overspending.
   6. Reduced IT Overheads: By consolidating your IT environment within Office 365, businesses can lower operational costs, simplify management, and eliminate the need for maintaining separate infrastructure.

2. Google Vault to Office 365 Migration Plan

   Planning is one of the most important steps before you begin the Google Vault to Office 365 migration. Here is a checklist of points to consider before you migrate.

   • Determine the size of the data and the number of mailboxes you want to migrate.
   • Define the Gmail message searches, users, date ranges, and export batches in scope. Record the Google Vault holds, retention rules, matters, and permissions that must be recreated or documented separately because those controls are not transferred through PST.
   • Create appropriate user mailboxes on Office 365 and assign licenses to them.
   • Ensure you have enough network capacity and bandwidth to migrate.
   • Communicate the migration plan and flow to your end users.

3. Google Vault to Office 365 Migration Pre-migration Activities

   1. In Google Vault, create the required matter/search and export the Gmail message data in PST format for the users and date ranges in scope.
   2. Download the completed Google Vault export and retain the accompanying metadata files for verification and eDiscovery traceability.
   3. Select a Microsoft 365 plan that provides the required mailbox, archive, retention, eDiscovery, and compliance capabilities for the target users. Compare Microsoft 365 business plans and enterprise plans
   4. Create Office 365 mailboxes and assign licenses to them

        Add users and assign licenses to Office 365 users

        Assign Microsoft 365 licenses to user accounts

   5. If you plan to migrate your mailboxes to Office 365 Public folders, ensure that you create and configure the Public folder mailboxes on the target server.

       Create Office 365 Public folder and assign mailbox user

   6. Similarly, if you want to migrate mailboxes to Office 365 In-Place archive, enable them from the admin center.

       Steps to enable archive mailbox in Microsoft 365.

   7. Configure Office 365 to send and receive large messages.

       Follow the steps to increase the message size on Office 365 to 150MB. See message size limits on Office 365 for more information.

4. Steps to Migrate Google Vault to Office 365

   • Step 1: Download and install the EdbMails software

     • Download and install the EdbMails application on your computer running Windows OS.

       

     • See a detailed list of EdbMails system requirements for PST to Office 365 migration.
     • Open the EdbMails application on your computer.
     • Enter your registered email address and password, then click ‘Login’. If you are using EdbMails for the first time, select ‘Start Your Free Trial’ to proceed with the trial version.
       Note: The trial version provides access to all major features and allows migration of up to 30 items per folder. To migrate all eligible items for licensed PST workloads, purchase the appropriate EdbMails PST Recovery and Migration license from the official website.

        Click here to view the PST Migration pricing details.

       After completing the purchase, close the application and open it again. Then sign in using the same email address and password used during the purchase to activate the license successfully.

       

     • Select ‘Outlook PST Recovery and Migration'.

       

     • Select ‘PST to Office 365’.

       

     • You can proceed with the default job name or select ‘New Job’ to assign a custom name for better tracking and organization. Once you set the job name, click ‘Next’ to continue.

       

   • Step 2: Select the Google Vault PST files

     • Export your data from Google Vault into a PST file.
     • To add a PST file that you want to migrate in EdbMails, click ‘Browse for PST file’.

       

     • Browse and select the PST file from your local drive that you wish to migrate. Once selected, click ‘Next’ to proceed with the migration.

       

   • Step 3: Preview and select the Google Vault mailboxes

     • EdbMails scans the selected PST file and displays readable mailbox data. If a PST is damaged, recoverable content depends on the condition of the file and the underlying readable data.

       

     • Once the recovery process is finished, the complete folder hierarchy is displayed in the left pane. You can browse the mailbox and expand the folders to check the recovered items. The integrated preview option allows you to view emails, contacts, notes, tasks, calendars, and folders directly within the application.
     • Select the required mailboxes/folders for migration and click the ‘Next’ button.

       

   • Step 4: Connect to target Office 365 server

     • Select the ‘Add New Connection’ option to establish a connection with your target Office 365 account.
     • If you have previously set up a connection, you can choose it from the available list and click ‘Connect to Existing’ to proceed.

       

     • Select the required connection options and click the ‘Next’ button.

       

     • Choose any of the available options to create a secure connection using OAuth 2.0 modern authentication.
     • Select Auto Registration for a fast and simple setup. Sign in with a Global Admin account and allow the required permissions to automatically register the application in Azure AD.
     • You can also choose Manual Registration if you want to provide the Azure AD application details manually. This option works with both Global Admin accounts and accounts that have Full Access permissions.
     • Click ‘Login’ to continue.

         Connect to Office 365 server using secure modern authentication

       

     • Authenticate on Microsoft sign-in page.

       

     • After successful authentication, select one of the following options to load the mailboxes:

       i) Load Mailboxes Automatically: EdbMails retrieves the mailboxes available through the selected Microsoft 365 connection. If the automatic list does not contain every required mailbox, use the CSV option below to load the intended targets.

       ii) Load Mailboxes using CSV file: If the automatic method does not retrieve all mailbox names, choose the ‘Load Mailboxes using .CSV file’ option to manually import and load the required mailboxes.

       iii) Load Mailboxes from previous list: This option lets you load mailboxes directly from a list that was previously imported and saved during an earlier session.

     • Select ‘Load Mailboxes Automatically’ and click ‘Next’ to proceed.

       

   • Step 5: Google Vault to Office 365 source and target mailboxes mapping

     • Choose the required mailbox mapping option

       

     • Where supported and selected, EdbMails can assist with target mailbox creation. Verify Microsoft 365 licensing and target readiness before migration.

        Learn more about the automatic mailbox creation process on the target Office 365 server.

     • EdbMails can automatically map mailboxes and folders where the available identifiers align. Review and adjust the final PST-to-target mapping before migration.

       

   • Step 6: Start Google Vault to Office 365 migration

     • Click the 'Start Migration’ button to initiate the migration process.

       

     • The migration will now start, and you can monitor its progress using the built-in status bar. EdbMails also lets you pause and resume the process at any time. Upon completion, a confirmation message will appear to indicate success.

       

     • You can verify the list of migrated folders and mailbox items with EdbMails text-based migration log report.
     • Once the migration is successfully completed, log in to your target Office 365 account and verify that all the mailbox items have been migrated correctly.

5. Google Vault to Office 365 Post-migration Tasks

   • Step 1: Verify the migrated PST data

     Compare representative messages, attachments, timestamps, target folders, and item counts with the Google Vault export and its metadata files.

   • Step 2: Review retention and compliance settings

     Configure the required Microsoft 365 retention, archive, eDiscovery, and access policies for the target users. Migrating data does not automatically reproduce Google Vault holds or retention policies.

   • Step 3: Preserve the original export

     Retain the Google Vault export and metadata until migration verification, compliance review, and the agreed retention period are complete.

6. Troubleshooting Guide for Google Vault to Office 365 Migration

     Refer to the knowledge base articles for solutions to common issues. For additional details on EdbMails PST to Office 365 migration, check the frequently asked questions or reach out to our customer support team.

 Learn more about EdbMails PST migration Tool.

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Additional resources:

• Mimecast to Office 365 migration
• Barracuda to Office 365 migration
• Enterprise Vault to Office 365 migration
• PST Migration Tool
• Office 365 migration reports