MIGRATION GUIDE Microsoft 365 / Exchange Online

Microsoft 365
to Google Workspace.

Switching from Microsoft 365 is mostly about timing: copy everything while staff keep working, switch email in one move, and cancel the old licences before they renew.

QUICK ANSWER

Can I migrate from Microsoft 365 to Google Workspace without losing data?

Yes. Exchange Online email, calendars and contacts, plus OneDrive files, can be migrated to Google Workspace while your team keeps working in Microsoft 365. Teams chat history does not migrate. Time the switch before your Microsoft 365 renewal date so you don't pay for both for longer than necessary.

What data can be migrated from Microsoft 365 to Google Workspace?

Email, calendars, contacts and OneDrive files all move to Google Workspace, and SharePoint files can go to shared drives. Teams chats don't migrate and desktop Office apps aren't part of Google Workspace — keep Microsoft 365 Apps licences for staff who truly need them.

Microsoft 365 dataMoves?Notes
Exchange Online email✓ YesFolders and read/unread status preserved
Calendars & meetings✓ YesRecurring events and attendees come across
Contacts✓ YesPersonal contacts per user
OneDrive files✓ YesMoved into each user's Google Drive
SharePoint sites & files✓ FilesFiles move to shared drives; site pages are rebuilt if needed
Teams chats✕ NoExport for records; conversations restart in Google Chat
Desktop Office apps✕ NoKeep Microsoft 365 Apps licences for staff who need them

How do I migrate from Microsoft 365 to Google Workspace?

Run both systems side by side: set up Google Workspace, copy data in the background, switch MX in one step, run a final delta copy, then cancel Microsoft 365. Staff keep working throughout and only change apps on cut-over day.

  1. Check your Microsoft 365 renewal datePlan the cut-over before renewal so you don't pay for another full term of licences you're leaving.
  2. Audit users, shared mailboxes and filesList users, shared mailboxes, distribution lists, and how much is in OneDrive and SharePoint.
  3. Set up Google Workspace alongsideCreate users and verify your domain. Microsoft 365 keeps receiving email until you switch MX.
  4. Connect the migrationA Microsoft 365 global admin grants Google's migration tool access to Exchange Online and OneDrive.
  5. Copy email, calendars, contacts and filesRun the bulk migration. Staff keep working in Microsoft 365 while it copies in the background.
  6. Switch MX and update SPF, DKIM, DMARCPoint MX to smtp.google.com and replace Microsoft's SPF include with Google's.
  7. Run a delta migrationCopy anything new since the first pass so nothing is missed.
  8. Train staff and set up Outlook if neededStaff who prefer Outlook can use Google Workspace Sync for Microsoft Outlook.
  9. Cancel Microsoft 365 licencesOnce everyone confirms their data, reduce or cancel the Microsoft 365 licences.

Update your SPF record

# Before (Microsoft 365) TXT @ v=spf1 include:spf.protection.outlook.com ~all # After (Google Workspace) TXT @ v=spf1 include:_spf.google.com ~all

When is the best time to switch from Microsoft 365?

The best time is 3–4 weeks before your Microsoft 365 renewal date. That gives enough time to copy data and train staff, and lets you reduce or cancel licences before you're billed for another term.

⚠Annual Microsoft 365 commitments may not allow cancelling mid-term. Check your subscription terms before you plan the cut-over date.

Can my staff keep using Outlook after moving to Google Workspace?

Yes. Google Workspace Sync for Microsoft Outlook lets staff keep using Outlook on Windows with their Google Workspace email, calendar and contacts. Most teams find they switch to Gmail within a few weeks, but nobody is forced to.

How long does a Microsoft 365 to Google Workspace migration take?

For a small business, a migration typically takes 1–2 weeks from planning to cut-over, mostly depending on how much OneDrive data there is. The cost is the Google Workspace subscription, a one-time RM99 setup fee and a separately quoted migration fee.

Comparing first? Read Google Workspace vs Microsoft 365.

Frequently asked questions

Do I need Microsoft 365 admin access to migrate?

Yes. A Microsoft 365 global administrator must grant the migration tool access to Exchange Online and OneDrive. We guide you through this step.

Will email stop working during the migration?

No. Email keeps arriving in Microsoft 365 until the MX switch, and a final delta migration copies anything that arrived in between.

Can Teams chats be moved to Google Chat?

No, Teams chat history does not migrate. Export what you need for records before cancelling Microsoft 365.

Can some staff stay on Microsoft Office apps?

Yes. Staff who need desktop Excel or Word can keep a separate Microsoft 365 Apps licence while their email and files run on Google Workspace.

Written by

Dr. KG Lim · 林启源博士

Dr. KG Lim is co-founder and CMO of O2O eCommerce Sdn Bhd, the company behind gws.asia. A digital transformation consultant and corporate trainer with over 20 years in website development, e-commerce and business digitalisation, he holds a DBA, is a guest associate professor at PIUC, and has coached over 2,000 professionals and entrepreneurs.

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