Microsoft 365 to Google Workspace Migration for Businesses
We migrate Exchange Online, OneDrive, SharePoint Online and Microsoft Teams to Gmail, Google Calendar, Drive, Shared Drives and Google Chat through a phased project covering discovery, mapping, preparation, pilot, pre-stage, delta, cutover, validation and hypercare.
Microsoft 365
Google Workspace
Exchange
OneDrive
SharePoint
Teams
Gmail
Drive
Chat
CalendarMicrosoft 365 to Google Workspace, workload by workload
The source and target platforms are not structurally identical. We therefore manage email, files, collaboration, identity and coexistence as separate workstreams with their own mapping rules, migration method and acceptance criteria.
Exchange Online
Email, calendars, contacts, tasks and supported mailbox or group scenarios according to the selected migration method and identity mapping.
ExchangeGmail + CalendarOneDrive
Personal files and folders to My Drive, with supported permissions mapped and internal/external sharing reviewed.
OneDriveMy DriveSharePoint Online
Sites, document libraries, folders and files to Shared Drives. Lists, pages and non-file functionality require separate treatment.
SharePointShared DrivesMicrosoft Teams
Supported channels and chat data can be imported into Google Chat spaces, with important differences in how conversations and attachments are represented.
TeamsGoogle Chat
Identities and groups
Mapping of users, UPNs, aliases, groups and resources into Google Workspace accounts, Google Groups and the target administrative structure.
Domain, DNS and coexistence
Domain verification, routing, MX, SPF, DKIM, DMARC, split/dual delivery and Calendar Interop when required by the transition design.
A migration built on current technology, not yesterday’s playbook
Migration platforms evolve quickly. MSAdvance continuously tracks Google and Microsoft migration capabilities, limits and product lifecycles so projects are designed around supported technology that fits the customer’s real scale and requirements.
Ready for the 2026 evolution of Google Workspace Data Import
Google is moving Microsoft 365 migrations toward its newer Data Import experience while progressively retiring Google Workspace Migrate for several Microsoft source workloads. We incorporate these changes into project design to avoid obsolete dependencies and reduce technology risk.
Email, calendars, contacts and tasks with real feature mapping
Google Workspace Data Import copies supported Exchange Online data without deleting or modifying the source. Advanced migration capabilities can extend the scope for selected enterprise scenarios.
Personal files and team content need different target models
OneDrive normally maps to each user’s My Drive, while SharePoint Online maps to Shared Drives. Identity mapping, permissions, shared links, owners and unsupported objects determine the real migration effort.
OneDrive → My Drive
Personal folders and files with supported permissions mapped. Files remain in their original format.
SharePoint → Shared Drives
Site collections, nested sites, document libraries, folders, files and supported permissions.
Target governance
Shared Drives, managers, groups, external sharing, naming, target structure and ownership should be defined before loading data at scale.
Messages can move, but the collaboration experience is not identical
Google can import supported Teams data into Google Chat spaces. Channels, messages and selected chat types have destination equivalents, but some objects change representation or are not included.
A professional migration starts by knowing the differences before cutover
We do not use “100% of data preserved” as a universal promise. The project documents what transfers, what changes representation and what requires redesign or a separate migration approach.
Coexistence and cutover designed to minimize business disruption
The transition model depends on user count, project duration, domains and the need to keep services operating across both platforms while migration waves are in progress.
Split delivery
Allows selected recipients to receive mail in Gmail while others temporarily remain on the legacy mail system.
Dual delivery
Can deliver messages to Gmail and another mail system during selected pilot or transition scenarios.
Calendar Interop
Allows Google Calendar and Microsoft Exchange users to query free/busy availability across both environments.
We prepare Google Workspace so data lands in a governed environment
Before production data moves, we define the target administrative structure and the controls that shape identity, access, collaboration and data ownership.
Users, OUs and groups
Target accounts, licensing, organizational units, groups, admin roles and naming conventions.
Drive & Shared Drives
Structure, managers, memberships, external sharing, site/team destinations and ownership.
Gmail & routing
Domain, MX, SPF, DKIM, DMARC, hosts, split/dual delivery and transition routing.
Security and governance
2-Step Verification, access controls, DLP, Vault, sharing controls and additional capabilities depending on edition.
Retention and compliance are designed before Microsoft 365 is closed
Microsoft Purview and Google Vault are not automatic equivalents
Google explicitly positions Exchange Online Data Import as a productivity migration function rather than a mechanism for satisfying legal obligations. If the source includes retention policies, legal holds, eDiscovery, journaling or regulatory requirements, those items are managed as a separate workstream.
Controls we review
Depth depends on the Google Workspace edition and contracted scope.
Eight phases for moving from Microsoft 365 to Google Workspace with control
The method adapts to scale and workload mix. The key principle is to separate discovery, preparation, pilot, pre-stage, cutover and validation so the production cutover is not the first real test.
Inventory
Users, mailboxes, OneDrive, sites, Teams, domains, permissions, retention and dependencies.
Identity mapping
Source-to-target mapping for users, groups, sites, Shared Drives, resources and chat objects.
Target environment
Workspace, licensing, OUs, groups, Shared Drives, routing, security and Vault.
Pilot
Representative users and data to validate tooling, timings, experience and exceptions.
Initial migration
Historical data is copied while Microsoft 365 remains operational.
Final synchronization
Recent changes are copied and failed items are addressed before cutover.
Production switch
Routing, MX, validation, access and communications are coordinated in the agreed window.
Closure
Issues, reconciliation, documentation, temporary access and handover are completed.
The migration is complete when users can work normally again
Outlook, OneDrive, SharePoint and Teams use different mental models from Gmail, Drive and Chat. Where required, user readiness and adoption support are included in cutover preparation.
Technical support and adoption aligned with the cutover
We can prepare guides, communications, handover sessions and go-live support. End-user assistance is explicitly scoped: a data migration does not automatically imply an indefinite help desk service.
Migrated data, evidence and a project that can be closed with confidence
Discovery & Inventory
Users, workloads, volumes, sites, Teams, domains and dependencies.
Mapping Matrix
Mapping of identities, mailboxes, groups, sites and Drive/Chat destinations.
Migration Design
Method by workload, standard/advanced approach, batches, permissions and tools.
Coexistence Plan
Routing, Calendar Interop, domain, DNS and cutover window.
Exception Register
Unsupported objects, redesign requirements and agreed decisions.
Validation Evidence
Reports, failed items, retries, counts and functional validation.
Cutover Runbook
Tasks, owners, sequence, Go/No-Go criteria and communications.
Handover & Closure
Open items, temporary access, documentation and next steps.
Starting-point pricing for a Microsoft 365 → Google Workspace migration
We keep component-based reference pricing to make early budgeting easier. Final pricing depends on volume, permissions, metadata, retention, coexistence, chat history, applications and execution windows.
User mailbox
€12 / mailboxStarting from, for standard scope.
- Email, Calendar and Contacts within scope.
- Pre-stage + delta where applicable.
- Coordinated routing and validation.
User account
€10 / userStarting from, for standard scope.
- Files and folders.
- Supported permissions.
- Identity mapping and reporting.
Team
€40 / teamStarting from, for collaboration files.
- Channel files.
- Shared Drives destination.
- Chat migration scoped separately.
Site
€40 / siteStarting from, for standard scope.
- Libraries, folders and files.
- Shared Drives and supported permissions.
- Lists/pages scoped separately.
Deep Microsoft 365 knowledge to understand the source environment we are transforming
A move to Google Workspace requires strong knowledge of the target, but also a detailed understanding of Exchange Online, OneDrive, SharePoint, Teams, Entra ID, DNS, retention and Microsoft 365 dependencies. That prevents the source tenant from being treated as a simple data repository.
What we need to size a Microsoft 365 to Google Workspace migration
These inputs are enough for an initial estimate of workstreams, migration method, batching, coexistence and cutover requirements without requiring administrative access during the first conversation.
Microsoft 365 to Google Workspace migration: technical answers before you decide
What can be migrated from Microsoft 365 to Google Workspace?
Google provides current import paths for Exchange Online, OneDrive, SharePoint Online and Microsoft Teams. A complete migration project also needs to address identities, groups, domains, DNS, mail routing, permissions, retention and user experience.
What migration technology do you use in 2026?
For new projects we prioritize the current Google Workspace Data Import experience where it fits the requirement. Google offers standard and advanced migration capabilities depending on workload, scale and required control. We validate the current product lifecycle and limits before finalizing the migration design.
When is Advanced Data Import useful?
It is relevant when migration scale, batch requirements, dedicated API capacity or advanced object support justify it. The exact approach is selected from the customer’s user count, data volume, workloads and coexistence requirements.
Does every Exchange Online email migrate?
Supported messages from included folders can be copied into Gmail, subject to Google Workspace limits and feature support. Some objects, folders or message states have no direct target equivalent and must be documented during discovery.
What happens to Outlook folders in Gmail?
Exchange Online folders and subfolders are mapped to Gmail labels. Gmail uses labels rather than traditional folders, so organization and message counts can behave differently after migration.
Can Exchange calendars and calendar permissions be migrated?
Supported calendars and events can be imported. Advanced migration capabilities can support additional calendar objects such as selected permissions and event attachments. The exact scope should be validated against the current Google migration method.
Can shared mailboxes be migrated from Microsoft 365?
Yes, depending on how the shared mailbox is used. It can be mapped to a Gmail account or another Google Workspace collaboration model. Send-as, delegation, shared history and operational behavior should be designed explicitly.
Can Outlook rules be migrated to Gmail?
Advanced migration capabilities can import supported Outlook rules as Gmail filters, but not every Outlook condition or action has a Google equivalent. Business-critical rules should be reviewed before cutover.
Can OneDrive files be migrated to Google Drive?
Yes. Google’s current Data Import flow can copy supported OneDrive folders and files into the user’s Google Drive account, with supported permissions mapped where possible.
Is OneDrive version history preserved?
Not through the standard current file-import flow: Google documents that the latest file version is imported. If version history is a business or compliance requirement, it needs a separate migration strategy.
Can SharePoint Online be migrated to Shared Drives?
Yes. Supported SharePoint site collections, document libraries, folders and files can be mapped into Google Shared Drives, together with supported permissions.
Do SharePoint lists and pages migrate to Google Workspace?
Not through the standard current SharePoint file migration flow. We inventory lists and pages and define a separate reconstruction, export or specialist migration approach where they are required.
Can Microsoft Teams chats be migrated to Google Chat?
Google documents migration of supported Teams channels and chat data into Google Chat. 1:1, group and meeting chats may be represented differently in Workspace, so the destination experience is not identical to Microsoft Teams.
Do Teams attachments migrate with Chat history?
No. Chat attachments are handled separately. The underlying files are normally migrated through OneDrive or SharePoint where applicable.
Can Microsoft 365 and Google Workspace coexist during migration?
Yes. Depending on the scenario, split delivery, dual delivery and Calendar Interop can reduce disruption during pilots and phased waves. The exact coexistence design depends on domains, routing and project duration.
Do MX, SPF, DKIM and DMARC need to change?
Yes when Gmail becomes the production mail system. The cutover includes the required DNS and routing sequence together with end-to-end inbound and outbound mail validation.
Are Microsoft Purview retention and legal holds migrated automatically?
No. Google positions Exchange Online import as a productivity migration function, not as a legal-compliance mechanism. Retention, holds and eDiscovery requirements need to be explicitly redesigned and validated in Google Vault.
How long does a Microsoft 365 to Google Workspace migration take?
It depends on user count, mailbox size, TB, file counts, sites, Teams, API limits, error rates and coexistence requirements. Risk is usually reduced through pre-stage, delta passes and phased waves rather than attempting to move everything in one night.
Can the cutover be performed outside business hours?
Yes. User-impacting cutover activities and mail-routing changes can be scheduled in an agreed window. The wider project is delivered remotely and coordinated with the customer team.
What happens after cutover?
We complete the agreed validation, resolve issues during the hypercare period, reconcile failed and pending items, deliver documentation and review temporary migration access or applications used during the project.
Sources used to validate migration scope and platform behavior
Google is actively evolving its migration tooling in 2026. Requirements, limits and supported objects are revalidated against current documentation before each project is finalized.
Data Import overview
Current migration methods by source and scale.
Open documentationData & feature mapping
Supported email, calendars, contacts, tasks, rules and mailbox scenarios.
Open documentationOneDrive + SharePoint
Permissions, links, versions, sites, Shared Drives and unsupported objects.
Open documentationBefore setting the cutover date, know exactly what needs to move
Send us your user count, mailboxes, OneDrive accounts, SharePoint sites, Teams, domains and target date. We will identify the appropriate migration approach, the information still required and how the project should be structured.
