Google Workspace to Microsoft 365 Migration: Complete Guide for SMBs in 2026

Many growing businesses are moving from Google Workspace to Microsoft 365 to gain deeper integration across email, Teams, SharePoint, OneDrive, and the Power Platform. A well-executed migration can transform collaboration while minimizing disruption.

At Accred Consulting, we specialize in seamless G Suite to M365 migrations for small and mid-sized businesses.

Why Companies Switch from Google Workspace to Microsoft 365

Common drivers include:

• Need for advanced Teams voice and calling features
• Better enterprise security, compliance, and governance (Purview, Defender, Conditional Access)
• Desire for a unified Microsoft ecosystem (especially if already using Azure, Dynamics, or Power Platform)
• Superior desktop app experience and offline capabilities
• Stronger admin controls and reporting

Pre-Migration Planning

1. Inventory Your Google Workspace Environment

Document:

• Number of users and shared drives
• Total storage used
• Calendar and contact data volume
• Google Groups and permissions
• Any custom apps or scripts using Google APIs
• Third-party integrations (Slack, Zoom, etc.)

2. Map Data to Microsoft 365 Equivalents

| Google Workspace | Microsoft 365 Equivalent | Notes | |------------------------|-----------------------------------|-------| | Gmail | Exchange Online / Outlook | Primary migration target | | Google Drive | OneDrive + SharePoint | Shared drives → SharePoint sites | | Google Calendar | Outlook Calendar / Teams | Excellent fidelity with modern tools | | Google Contacts | Outlook Contacts | Usually straightforward | | Google Chat / Spaces | Microsoft Teams | Chat history migration has limitations | | Google Sites | SharePoint Communication Sites | Manual recreation often required | | Google Forms | Microsoft Forms | Good native support |

3. Decide on Migration Method

Options:

• Microsoft's native migration tools (improved but still limited for complex scenarios)
• Third-party migration platforms (best for large data volumes, delta sync, and detailed reporting)
• IMAP-based tools for smaller/simple migrations

We generally recommend specialized migration platforms for anything beyond very small environments.

4. Plan Coexistence & Cutover Strategy

Most organizations benefit from a period of coexistence:

• Keep Google Workspace active during migration
• Forward email or use dual delivery temporarily
• Maintain calendar free/busy sharing
• Communicate clearly with users about the transition timeline

Migration Execution Best Practices

Email (Gmail → Exchange Online)

• Migrate in batches by department or user group
• Preserve folder structure and labels as folders/categories
• Test signature migration and rules
• Validate email flow and spam filtering post-migration

Files (Google Drive → OneDrive/SharePoint)

• Map shared drives to SharePoint sites with proper permissions
• My Drive content typically goes to OneDrive for Business
• Pay special attention to external sharing links and permissions inheritance
• Consider using the OneDrive sync client for a smooth user experience after migration

Calendars & Contacts

Modern tools handle these very well. Focus on:

• Recurring meetings and attendee lists
• Resource calendars (conference rooms)
• Contact groups

Teams & Chat

Google Chat history migration is limited. Plan for:

• Starting fresh in Teams channels
• Using migration tools for what is supported
• Training users on Teams best practices

Post-Migration Optimization

After the technical cutover:

• User Training: Schedule short, role-based sessions on Outlook, Teams, OneDrive, and SharePoint
• Permissions Cleanup: Review and tighten external sharing
• Adoption Monitoring: Use Microsoft 365 adoption analytics
• Decommission Google Workspace: Cancel licenses only after full validation (typically 30–60 days)

Common Pitfalls to Avoid

• Underestimating the volume of data in Shared Drives
• Ignoring external sharing links and permissions
• Insufficient user communication and training
• Not testing calendar free/busy and resource booking early
• Rushing the cutover without a pilot group

Ready to Migrate from Google Workspace to Microsoft 365?

Our team has helped dozens of organizations make this transition smoothly. We handle the technical heavy lifting so your team can focus on the business.

Book your free migration assessment today: Contact Accred Consulting

We'll analyze your environment, recommend the best approach and tools, and provide a clear timeline and fixed-price proposal.

Frequently Asked Questions

How long does a Google Workspace to M365 migration take? Small organizations (under 50 users) can often complete migration in 1–2 weeks. Larger environments typically require 4–8 weeks with phased waves.

Will users lose their email history? No. Email, folders, and most metadata migrate reliably with the right tools.

What happens to Google Shared Drives? They map beautifully to SharePoint team sites. We help you redesign the structure for better governance and search.

Can we keep using Google Meet or other Google tools temporarily? Yes. Many clients run hybrid environments during transition and gradually shift to Teams.