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Google Workspace - M365 Migration
Google Workspace - M365 Migration
Learn how we migrated a Chicago-based MSP client's entire email environment from Google Workspace to Microsoft 365 — with calendars, contacts, and shared drives intact.
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Business Problem
The client's team was split between Google Workspace and M365 users, causing friction in collaboration, calendar sharing, and document co-editing. Limited internal expertise meant they couldn't execute the migration safely without risking email downtime or loss of historical mailbox data spanning several years.
Our Solution
We used MigrationWiz to execute a phased migration — first contacts and calendars, then mailbox data in batches. Microsoft Secure Score was monitored throughout, and users were trained on M365 before their personal cutover date. The 10-month timeline accommodated the client's operational sensitivity.
Project Plan
1
Inventory & Licensing
Audited all Gmail accounts, shared drives, Google Calendar data, and Google Contacts. Procured appropriate M365 licensing for all users before migration began.
2
Migrated contacts and calendar data first using MigrationWiz. Users verified their data in Outlook Web Access before mailbox migration began.
3
Batched Mailbox Migration
Users migrated in batches of 20. Each batch ran over a weekend with a delta sync on Monday morning before users were cut over to Outlook.
4
Shared Drives to SharePoint
Google Shared Drives were migrated to SharePoint document libraries with permission structures preserved using SharePoint Migration Tool.
Outcomes
100
%
Mailbox data migrated successfully
0
hrs
Email downtime for any user
+8
pts
Microsoft Secure Score increase post-migration
"Google to Microsoft migrations are deceptively complex — calendar data, shared drives, permissions. Inputiv used MigrationWiz and did the whole thing in batches with zero data loss. The client asked why we didn't do this years ago. That's the best kind of feedback."
— Founder · MSP, Texas
Tech Stack
📧 Microsoft 365
🔵 Google Workspace
🔀 MigrationWiz
🔒 Secure Score
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Project Details
Migration type
MigrationWiz
Source
Google Workspace
Destination
Fixed-cost Microsoft 365
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