Switching from Microsoft 365 to Google Workspace is a strategic move for small businesses looking for cost savings, increased collaboration, and greater operational agility. For Canadian SMBs, this transition often results in lower licensing costs, simplified IT administration, and more modern workflows built around Gmail and Google’s productivity suite. However, the migration process can be daunting without a comprehensive plan. Here, we present an actionable checklist—rooted in our extensive migration expertise at Interlock IT—to guide your business through each stage confidently and effectively.
What Is a Microsoft 365 to Google Workspace Migration?
A Microsoft 365 to Google Workspace migration involves transferring your company’s email, calendars, contacts, files (such as those in OneDrive and SharePoint), and user identities from Microsoft’s cloud productivity suite to Google Workspace. The goal is to preserve all business-critical data and maintain productivity while unlocking Google’s collaborative tools.
This process requires careful preparation, technical expertise, and a stepwise approach to minimize data loss, avoid downtime, and ensure compliance.
Why Small Businesses Choose to Switch
Many businesses are moving to Google Workspace to benefit from:
Lower costs: Flexible monthly or annual billing (with savings for annual commitment) and no long-term lock-ins.
Enhanced collaboration: Real-time editing in Google Docs, Sheets, and Slides, avoiding the version conflicts common in Microsoft Office files.
Gmail-centric workflows: Seamless integration with familiar Gmail interfaces, third-party apps, and cloud-based collaboration.
Unified management: Centralized tools to manage users, devices, and security with Google Admin Console.
Streamlined integrations: Google Workspace connects natively with business SaaS tools like Copper CRM and Hiver, both of which are supported by Interlock IT.
With offices in Mississauga and Detroit, Interlock IT has helped thousands of businesses move to Google Workspace since 2009, continually refining what works best for Canadian SMBs.
Microsoft 365 to Google Workspace Migration Checklist
Below is our proven, step-by-step migration framework. Every step is designed to ensure a safe transition, as practiced by Interlock IT's Google Workspace Certified Deployment Specialists.
1. Pre-Migration Planning
Inventory Users and Data: Export user lists (emails, aliases), distribution groups, calendars, OneDrive files, and SharePoint sites from the Microsoft 365 Admin Center.
Backup Your Data: Secure all data with a robust backup solution. Interlock IT recommends Afi.ai's enterprise-grade backups for both Microsoft 365 and Google Workspace, ensuring infinite retention and ransomware protection.
Review Licensing and Contracts: Check your Microsoft 365 renewal to avoid overlapping license fees. Decide when to cut over so you aren’t billed for both platforms.
Set Up Google Workspace: Sign up for Google Workspace Business Standard or Business Plus. Verify your domain via TXT record—do not change MX records yet.
2. Account and Identity Creation
Create Google Workspace User Accounts: In the Google Admin Console, add users that precisely match your existing email addresses and aliases. This step is critical to preserve data continuity. Interlock IT can automate bulk account creation for your team.
Assign User Roles: Define admin privileges and user groups as needed for access control.
3. Data Migration Execution
Contacts and Calendars: Use Google’s native Data Migration Service to transfer contacts and calendars first as a test run.
Email Migration: Use Google’s Data Migration Service to transfer email from Microsoft 365 mailboxes. Schedule the migration over a weekend for minimal disruption. For organizations up to 250 users, this native tool is usually sufficient. For more complex needs, specialized 3rd party tools plus Interlock IT expert services can be used.
File Migration (OneDrive/SharePoint to Google Drive): Set up Google Shared Drives to mirror your SharePoint structure. Use our Interlock IT professional services partner for advanced requirements such as preserving permissions.
DNS Preparation and Deliverability Setup: Prepare SPF, DKIM, and DMARC records for your domain but do not update MX records until data migration is complete. As email deliverability experts, Interlock IT recommends a DMARC audit prior to cutover. For in-depth DMARC guidance, see our blog on implementing a DMARC audit checklist for small businesses.
4. Cutover and Validation
Switch MX Records: Point your domain’s MX records to Google’s servers to route all new emails to Google Workspace.
Perform Delta/Final Sync: Run another migration sync to catch messages delivered to Microsoft 365 during the cutover window.
Verify Data Integrity: Check inboxes, sent items, drafts, attachments, calendar entries, and Google Drive folders to ensure everything migrated as expected.
Roll Out Google Workspace to End Users: Share quick-start guides and schedule Q&A sessions. Consider piloting the migration with a small team first before company-wide rollout, especially for teams larger than 20 users.
Best Practices for a Smooth Migration
Plan for a Weekend Window: Scheduling your cutover over a weekend or during low-activity periods reduces the business impact.
Data Integrity Verification: Check permissions, folder structures, and critical calendars/files for accuracy post-migration.
Communicate Often: Keep your team informed through each step, set clear expectations, and provide a channel for questions.
Leverage Backups: Maintain pre- and post-migration backups, using services like Afi.ai through Interlock IT.
DMARC Auditing: Implement DMARC early in collaboration with your migration partner.
Integrate Core Apps: Once settled, connect Google Workspace to business-critical services like Copper CRM and Xero Accounting for streamlined workflows.
Common Pitfalls and How to Avoid Them
Overlooking SPF, DKIM, and DMARC: Failure to configure these properly can cause outbound email to be marked as spam. Partner with Interlock IT for comprehensive deliverability audits.
Insufficient User Training: Early adoption is driven by confidence. Schedule onboarding and provide user guides to reduce resistance.
Manual File Transfers: Drag-and-dropping hundreds of files can lead to omissions and permission losses. Use professional tools or expert-led services for structured data migration.
Ignoring Licensing Overlaps: Overlapping subscriptions lead to doubled costs. Time your cutover just before Microsoft 365 renewal dates.
Integrating Google Workspace with Business Apps
Google Workspace connects natively with leading business solutions, including:
Copper CRM: For sales tracking and customer management, tightly integrated with Gmail and Google Drive.
Xero Accounting: Real-time financial insights, CPA-backed support, and Google SSO for streamlined authentication.
Hiver Help Desk: Shared email and ticketing within the familiar Gmail UI.
Interlock IT specializes in fast deployment of these integrations so businesses realize value in days, not months.
How Interlock IT Supports Your Migration
Proven Track Record: Since 2009, we have led countless successful migrations for Canadian SMBs, with consistent results highlighted in our client testimonials.
End-to-End Service: Includes requirements assessment, user communication plans, technical cutover, and change management strategies.
Data Security: Our team uses trusted backup and migration tools to ensure nothing is lost and everything is compliant.
Learn more about our migration expertise on our Google Workspace services page.
FAQ: Microsoft 365 to Google Workspace Migration for Small Businesses
How long does a migration typically take?
The total migration project timeline is dependent on the number of integrated apps that need to be tested in advance of the cutover. The actual migration process is always completed over a weekend even for thousands of users.
Will I lose any email or file data?
If the migration checklist is carefully followed—including robust pre-migration backups—no data should be lost. Interlock IT ensures data integrity with advanced backup and migration tools, and post-migration validation.
What are common challenges during migration?
The most common issues are missed calendar events, data formatting mismatches, email deliverability errors (due to incomplete DNS records), and loss of file sharing permissions. Expert planning and validation, as delivered by Interlock IT, prevent these pitfalls.
How do I make sure outgoing emails aren’t marked as spam?
Implement SPF, DKIM, and DMARC as part of your migration. Interlock IT provides DMARC audits to align your email authentication for strong deliverability.
What if I need to migrate multiple domains or complex file structures?
Complex migrations call for advanced tools and expert oversight. Interlock IT manages these scenarios routinely, providing full project management and post-migration checks.
Conclusion
Switching from Microsoft 365 to Google Workspace is a significant upgrade for small businesses that prioritize modern collaboration, cost efficiency, and simplicity. By following a clear, expert-led migration framework, you preserve critical business data and ensure your team is empowered from day one.
For the most seamless experience, partner with Interlock IT: Canada’s trusted leader in cloud business transformations since 2009. We’re here to help with every aspect of your move—from planning to post-migration support. Get started or request a free DMARC audit by contacting us at support@interlockit.com.
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