Forum Discussion
Migrating G suite to Office 365
Dears,
Good day, I working on a company which hosted their email on G suite, and I want to migrate all mailboxes, calendar, tasks, files, all things to Office 365. kindly let me know the steps for Migration, we have 69 users needed to be completely migrated. Kindly advise
5 Replies
- John_Smith90Copper Contributor
Hey,
G Suite to Office 365 migration with 69 users is very manageable — here's how I'd approach it:
Before you start:
Set up your Office 365 tenant and create user accounts
Verify your domain in Microsoft 365 admin center
Make sure you have Google Admin console access
Assign appropriate Microsoft 365 licenses to all 69 users
What you need to migrate:
Emails and folder structure
Calendars and recurring events
Contacts
Google Drive files (these need special handling — OneDrive/SharePoint)
Tasks
Migration approach:
For 69 users, doing this manually via native Microsoft tools is possible but painful — especially for calendars, contacts, and tasks which don't migrate cleanly out of the box with native methods.
I've used EdbMails G Suite Migration Tool for a similar-sized project and it handled the heavy lifting well. A few things that stood out:
It uses Google Admin credentials so you don't need individual user passwords
Emails, calendars, contacts, and tasks all migrate in one pass
Incremental migration keeps mailboxes in sync until you're ready for final cutover
No PowerShell needed — everything through a GUI
The process is :
Connect source (G Suite) using Google Admin account
Connect target (Office 365) using admin credentials
Map source and destination mailboxes
Run the migration — monitor progress via built-in reports
Run a final incremental sync before updating MX records
Update DNS/MX records to point to Office 365
Decommission G Suite accounts after confirming everything is in order
For Google Drive files, you'd handle those separately through OneDrive migration — EdbMails covers the mailbox side.
Hope this helps — happy to answer any specific questions about the process.
- ariseburnerCopper Contributor
AdvikSoft G Suite to Office 365 Migration Tool is the safe way for the migration. This simple and user-friendly tool is perfect for anyone, even without technical skills. It is 100% secure and virus-free, so you can trust it for a safe migration process.
- Cian AllnerSilver Contributor
Hi Amr Khattab, see here for more information on new capabilities introduced last year for G Suite migrations to Office 365:
"Several weeks ago we added a new Microsoft 365 Roadmap item announcing our intent to add ability to migrate Google G Suite calendars and contacts to the ability to migrate mail to Office 365 using our native migration tools. We're excited to say that this functionality has started rolling out!"
Introducing the new migration experience from Google G Suite
and the associated technical documentation:
https://docs.microsoft.com/en-gb/Exchange/mailbox-migration/perform-g-suite-migration
For more of a general overview, check out https://support.office.com/en-us/article/Get-ready-Move-your-business-to-Office-365-26cc8d54-ed32-4c03-9dd1-be68ba274a14
- jackfightBrass Contributor
This article state that users must be mail enabled users, what if you have office 365 with mailboxes? What then?
Note: Deleting and recreating all the accounts is not an option.