Microsoft 365 to Google Workspace Migration

Need to migrate from Microsoft 365 to Google Workspace with minimal downtime while preserving permissions, membership, and metadata? At MSAdvance, we deliver the project end to end: email and calendars (Exchange Online to Gmail), files (OneDrive/SharePoint to Google Drive/Shared Drives), identities and DNS—with temporary coexistence and end-user support.

01 - 03

Assessment & Analysis

02 - 03

Planning & Design

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Deployment & Validation

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Migrating from Microsoft 365 to Google Workspace has never been easier.

At MSAdvance, we specialize in Microsoft 365 to Google Workspace migration with minimal disruption.
We move email and calendars (Exchange to Gmail/Calendar), personal files (OneDrive to Google Drive) and site/team content (SharePoint and Teams files to Shared Drives), preserving permissions and metadata where supported, with coexistence throughout the transition.

  • Workloads: email, calendars and contacts; OneDrive; SharePoint and Teams files; groups and sharing settings.
  • Identities: user and group mapping (aliases, UPN/primary email, roles) from Microsoft Entra ID to Google Workspace.
  • DNS & deliverability: domain verification, MX, SPF, DKIM, DMARC and split/dual delivery routing.
  • Coexistence: Calendar Interop (free/busy) between Microsoft 365 and Google.
  • Pre-seeding and delta passes with a cutover scheduled outside business hours to minimize disruption.
  • End-to-end monitoring and validation, post-cutover support and GDPR compliance.

150+ migrations from Microsoft 365 to Google Workspace and 25+ certifications back us up.

0h

of downtime

100%

data preserved

Get a quote

Scope of a Microsoft 365 to Google Workspace Migration

At MSAdvance, we run Microsoft 365 to Google Workspace migrations end to end: we move email and calendars, personal and team files, and identities and domains, preserving permissions and metadata where supported. When needed, we maintain service continuity with temporary coexistence (split/dual delivery and Calendar Interop) while migrating Exchange Online to Gmail and OneDrive/SharePoint to Google Drive / Shared Drives.

Ideal for replatforming, cost reduction, workplace modernization, tool consolidation, or carve-outs.

Exchange Online to Gmail Migration (email, calendars, and contacts)

We migrate user and shared mailboxes from Exchange Online to Gmail, including calendars and contacts, using modern authentication (OAuth) and deliverability testing. We configure Calendar Interop so users can see free/busy across platforms during coexistence, perform end-to-end validation, and adjust routing policies for split or dual delivery in the Google Admin Console.

OneDrive to Google Drive (My Drive) Migration

We move content from OneDrive to Google Drive while preserving structure and permissions where supported. We accelerate pre-seeding and delta passes, remap owners and shared links when feasible, and audit internal/external sharing. We also provide guides for Drive for desktop and device re-sync.

SharePoint and Teams Files to Google Drive (Shared Drives) Migration

We migrate SharePoint libraries and Microsoft Teams channel files to Shared Drives with owner/group mapping, preserving compatible permissions and metadata. We verify navigation, access, and internal links to avoid broken references, and document platform limits (naming, paths, file types) for a smooth adoption in Google Drive.

migración entre tenants M365

Microsoft Teams to Google Chat (Channels) Migration

Google’s chat data migration copies Teams channel messages into Google Chat spaces. The process does not delete or modify existing Chat spaces or messages. Not all Teams features are available in the destination, so we plan a pilot, validations, and communications to ensure a smooth transition with minimal disruption.

Domain & DNS (MX, SPF, DKIM, DMARC) Migration

We design coexistence with split delivery and dual delivery for pilots and cutover, enable Calendar Interop between Microsoft 365 and Google, and handle domain verification in Google Workspace. During the change window, we update MX, SPF, DKIM, and DMARC, validating inbound and outbound mail to maintain reputation and deliverability.

Identities, Security & Compliance Migration

We map users, aliases, and groups from Microsoft Entra ID to Google Workspace, aligning naming and target domains. We configure MFA, DLP and retention in Google Vault, and optionally SSO (SAML/OIDC). We leverage security controls and admin APIs for automation, and use Microsoft Graph/PowerShell for source inventory and preparation.

At MSAdvance, every Microsoft 365 to Google Workspace migration project includes a tailored plan, pilot testing, and temporary coexistence support to minimize disruption—ensuring your Google Workspace environment—Gmail, Google Drive/Shared Drives, and Google Calendar—is ready to drive productivity, collaboration, and security from day one.

Assessment & Analysis

Key first phase for a Microsoft 365 to Google Workspace migration and for replatforming, consolidation or domain change projects. We validate the real scope, technical feasibility and the work plan for scenarios such as migrating email and calendars from Exchange Online to Gmail/Calendar, migrating OneDrive to Google Drive, and migrating SharePoint and Teams files to Shared Drives, with coexistence during the transition.

  • Source environment discovery: inventory of users, mailboxes, domains and workloads (mail, files and collaboration), permissions and sharing, retention, applications and dependencies.
  • Technical feasibility: connectivity tests and transfer performance, controlled pilots, validation of authentication (OAuth/MFA/SSO) and permissions, platform limits, and identity/group mapping.
  • Risk & compliance: review of retention and eDiscovery, security and device policies, plus DNS checks (MX, SPF, DKIM, DMARC) with mitigations and a communication plan.

Outcome: an assessment plan with validated scope, a batch-based timeline, a coexistence strategy (split/dual delivery and Calendar Interop), component-level estimates, and mitigated risks.

Architecture Planning & Design

Define the target architecture and strategy for a safe, orderly Microsoft 365 to Google Workspace migration, prioritizing service continuity, security, and adoption.

  • Target architecture: Google Workspace with organizational units (OUs), groups, and admin roles (RBAC); services Gmail, Google Calendar, Google Drive (My Drive and Shared Drives), Google Chat, and Google Meet; governance with Google Vault and the Security dashboard.
  • Migration strategy: pre-seeding and delta passes, coexistence (split/dual delivery and Calendar Interop), a defined cutover window, and a documented rollback plan with end-to-end validations.
  • Governance & security: Drive and Shared Drives sharing policies, DLP for Mail/Drive/Chat, MFA (2-Step Verification), context-aware access, Drive labels, and retention/eDiscovery in Google Vault.
  • Destination readiness: domain and license verification, user and group provisioning, OU assignment, configuration of MX, SPF, DKIM, and DMARC, mail routing rules, Drive policies, and enabling Calendar Interop.
  • Communication & adoption: comms plan, “Outlook to Gmail”, “OneDrive/SharePoint to Drive/Shared Drives”, and “Teams to Chat/Meet” guides, training sessions, and go-live support.

Outcome: a detailed batch timeline, identified dependencies, acceptance criteria by workload, and a DNS/coexistence checklist for a surprise-free cutover.

Implementation & Validation

Execution runs in parallel with day-to-day operations, with batch quality controls and end-to-end traceability.

  • Target provisioning: create accounts and groups in Google Workspace, organize by OUs, create Shared Drives, assign admin roles, and apply policies (retention, DLP, MFA, and sharing governance).
  • Pre-seeding and delta passes: initial replication and scheduled syncs up to the defined cutover window, maintaining coexistence for email (split/dual delivery) and Calendar Interop for free/busy.
  • Data migration:
    • Email, calendars, and contacts: from Exchange Online to Gmail and Google Calendar, with deliverability checks and calendar availability validation.
    • Files: from OneDrive and SharePoint to Google Drive and Shared Drives, preserving structure and permissions and maintaining metadata where supported; owner remapping and resolution of name/path conflicts.
    • Collaboration: Microsoft Teams team and channel content into Google Chat spaces and meetings in Google Calendar/Meet, with membership mapping and coordination with owners.
  • Cutover window: update DNS (MX, SPF, DKIM, DMARC), perform end-to-end validation (mail, calendars, access and links), and provide hypercare support for users and IT.
  • Closure & audit: reconcile counts and permissions, review internal/external sharing, deliver final documentation, decommission the source securely, and provide recommendations to optimize security and data governance.

Outcome: services live on Google Workspace, business continuity, and documented quality controls after go-live.

Plans & Pricing for Microsoft 365 to Google Workspace Migration Services

At MSAdvance we use a clear, component-based model for Microsoft 365 to Google Workspace migration. Prices are “from” and finalized after an assessment (data volume, complexity, and change windows). Volume discounts available.

Migración Exchange Online

Exchange Online (Outlook) to Gmail Migration

From 12€/ mailbox

Email and calendars from Exchange Online to Gmail with coexistence (Calendar Interop) and split/dual delivery routing.

  • What we migrate: email, calendars and contacts (user and shared mailboxes).
  • Coexistence: free/busy interoperability and phased split/dual delivery.
  • Deliverability: end-to-end validation of MX, SPF, DKIM and DMARC.
  • Operations: pre-seeding and delta passes up to cutover; adoption guides for Gmail & Calendar.
    Get a quote
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    OneDrive to Google Drive (My Drive) Migration

    From 10€/ user

    Personal files from OneDrive to Google Drive with structure and permissions where supported.

    • What we migrate: OneDrive folders and documents to My Drive.
    • Access: owner remapping, review of shared links and internal/external sharing.
    • Data quality: resolve name/path conflicts; validate allowed file types/sizes.
    • Operations: pre-seeding and delta passes with batch reports; recommendations for Drive for desktop.
      Get a quote
      migración entre tenants M365

      Microsoft Teams Files to Google Drive (Shared Drives) Migration

      From 40€/ team

      Channel files (standard and private) organized into Shared Drives by project or department.

      • What we migrate: Teams channel files (stored in SharePoint/OneDrive) with structure and compatible permissions.
      • Mappings: team/channel → shared drive/folder; owners/members → groups/roles in Drive.
      • Operations: coordination with team owners, controlled batches and planned cutover.
      • Validations: checks on names, sizes and critical links before and after the move.
        Get a quote
        Logo SharePoint

        SharePoint Online / Microsoft 365 Groups to Google Drive (Shared Drives) Migration

        From 40€/ site

        SharePoint sites and libraries migrated to Shared Drives for collaborative work in Google Drive.

        • What we migrate: libraries and folders, and when applicable lists/pages, preserving compatible permissions and metadata.
        • Governance: owner/group mapping; review of retention and access policies.
        • Navigation: structure verification and repair of internal links to avoid broken references.
        • Operations: batch execution and off-hours cutover to minimize impact.
          Get a quote

          These are the main items typically quoted in a Microsoft 365 to Google Workspace migration: email, calendars and contacts (Exchange Online to Gmail/Calendar), personal files (OneDrive to Google Drive), site and team content (SharePoint/Teams files to Shared Drives), and Teams channel chats to Google Chat (direct messages are not included in this flow), and more.

          Note: “from” prices, excl. VAT. Valid for standard scopes and subject to an assessment (mailbox size, data volume, number of sites/teams/spaces, metadata, retention and dependencies). For files, version history and certain metadata may have limitations; external shares and public links require post-migration review; chat migration covers channels (not direct messages). Licenses for Google Workspace and complex extras are not included. Volume discounts apply.

          Frequently Asked Questions about Microsoft 365 to Google Workspace Migration

          How much does it cost to migrate from Microsoft 365 to Google Workspace?
          What gets migrated and what are the key limitations?
          How do we migrate email, calendars, and contacts from Exchange Online?
          Can we keep coexistence (email & calendars) during the migration?
          Which DNS changes (MX, SPF, DKIM, DMARC) are required?
          What about OneDrive migration (permissions, links, versions)?
          What about SharePoint sites and Teams files?
          Can Microsoft Teams messages be migrated to Google Chat?
          How are retention and eDiscovery handled in Google?
          How long does the migration take and what affects throughput?
          What does working with a certified partner like MSAdvance provide?

          Key benefits of working with MSAdvance

          With our experience across Google, Microsoft 365 and Azure, your company gets cloud solutions with:

          • Certified expertise: Microsoft and Google certifications.
          • Tailored approach: a custom roadmap aligned with your business goals.
          • High availability: resilient designs with a 99.9% SLA.
          • Proven experience: years delivering cross-platform migrations.