Switching between Google Workspace and Microsoft 365?

Google Workspace & Microsoft 365 Migration

We migrate email, calendars, and files between Google Workspace and Microsoft 365 with zero data loss and minimal disruption to your team.

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The Case for a Planned Migration

Independent research shows what is at stake when companies move their email and files, and why a managed migration is worth it. These figures reflect industry studies, not a single project.

23%

Internal migrations that hit downtime or data loss

Medha Cloud analysis of 400+ Microsoft 365 migrations

3-5x

Cost of a failed move vs. doing it professionally

Medha Cloud migration cost analysis

336%

Three-year ROI from modern cloud collaboration

Forrester Total Economic Impact study

1.5 hrs

Saved per employee each week through better collaboration

Forrester Total Economic Impact study

Move to Google Workspace or Microsoft 365 without losing a single email

Switching your company email and files from one platform to another sounds simple until it is your team that cannot find a message on Monday morning. Pulse Software Solutions LLC plans and runs these moves for businesses across the United States from our base in Denver, Colorado, so the transition is quiet and your people keep working.

We migrate in both directions, from Google Workspace to Microsoft 365 and from Microsoft 365 to Google Workspace, along with moves from Exchange Server, IMAP mailboxes, GoDaddy, and tenant-to-tenant transfers after a merger or rebrand. Mailboxes, calendars, contacts, shared drives, and permissions come across intact, and we keep both environments live during the switch so nothing goes dark.

As part of a broader cloud migration practice, our engineers handle the discovery, the data sync, and the DNS cutover, then stay on after go-live to clean up the long tail of small issues that always follow a move. You get a predictable plan, a clear timeline, and a single team accountable for the result.

What We Migrate

Six core areas of a Google Workspace and Microsoft 365 migration, handled so your data, your identities, and your day-to-day work all land safely on the new platform.

Email & Mailbox Migration

We move every mailbox, including primary accounts, shared mailboxes, aliases, and archives, with full message history, folder structure, and read or unread state preserved.

Calendars, Contacts & Resources

Calendars, recurring meetings, contact lists, and shared resources such as conference rooms transfer cleanly so scheduling and invites keep working after the cutover.

Files & Shared Drives

Documents move between Google Drive and OneDrive or SharePoint with folder hierarchy, ownership, and sharing permissions mapped to the right people on the new side.

Tenant-to-Tenant Moves

Mergers, acquisitions, and rebrands often mean combining or splitting tenants. We consolidate accounts, resolve domain conflicts, and merge data without overwriting anyone’s work.

Identity & Access Setup

We configure accounts, single sign-on, and multi-factor authentication on the target platform so users sign in once and security stays intact.

Coexistence & Zero-Downtime Cutover

Both systems run side by side with continuous sync and dual mail flow, so email keeps arriving and the final DNS switch is transparent to your team.

Why businesses bring us in for migrations

A do-it-yourself move can work for a handful of mailboxes. Once you have shared drives, compliance requirements, and a team that cannot afford an outage, a planned migration pays for itself.

Zero data loss, verified with item counts and spot checks before and after every wave
Minimal disruption through coexistence, so email and files stay available during the move
A full pre-migration discovery that surfaces hidden mailboxes, large archives, and stale accounts
DNS and MX cutover handled by us, with a tested rollback path if anything looks wrong
Security, retention, and backup policies carried over, not left behind
Post-migration support that resolves the small day-one issues before they become tickets

Google Workspace & Microsoft 365 Migration

What a managed migration takes off your plate

Most failed migrations trace back to gaps in planning, not bad tools. We close those gaps so your team is not the one troubleshooting at 2 a.m.

Choosing the right migration method for your source platform
Mapping users, groups, and permissions before any data moves
Communicating sign-in changes to users ahead of the cutover

Sequencing migration waves to stay inside throttling limits
Validating mail flow and logins before the DNS switch

Our Migration Methodology

A migration is a project, not a button. We follow a repeatable sequence that has moved environments from ten mailboxes to several thousand, with the same goal every time: no lost data and no surprise outages.

Discovery & Assessment

We inventory every mailbox, shared drive, and account on the source platform, including the archives and forgotten aliases.

This step sets the true scope and surfaces the risks early, so the plan reflects your real environment rather than a guess.

Migration Plan & Architecture

We choose the migration method, define the wave schedule, and document the identity, mail-flow, and DNS design.

You get a written plan with timeline, responsibilities, and a rollback path before any data moves.

Pilot Migration & Validation

A small pilot group moves first so we can validate mailboxes, files, logins, and recent messages on the new platform.

Fixing issues with a handful of users is far cheaper than discovering them across the whole company.

Coexistence & Data Sync

Source and target run together with continuous incremental sync, so users keep working while data moves in the background.

Dual mail flow makes sure no message is missed during the transition window.

Cutover & DNS Switch

We complete the final sync, switch DNS and mail routing, and confirm security settings and access on the target.

The change is scheduled for the lowest-impact window and verified before we call it done.

Hypercare & Decommission

After go-live we stay on to resolve the day-one questions, fix edge cases, and confirm everything is stable.

Once you sign off, we safely decommission the old environment so you are not paying for two platforms.

Every migration is a little different, but the discipline is the same. Careful discovery, a tested plan, and a verified cutover are what turn a risky project into a quiet weekend.

Flexible Engagement Models

Start with an assessment and scale up, or hand us the whole project end to end. Most clients move through these stages in order, but you can engage us at whichever point fits your team and budget.

Assessment

We audit your current environment, size the project, and deliver a fixed-scope migration plan with timeline and cost. A clear starting point with no commitment to the full move.

Pilot

We migrate a representative group of users and validate every workload, from mail and calendars to files and logins, so the full migration runs on proven steps.

Full Migration

We execute the complete move in scheduled waves with coexistence and a managed DNS cutover, keeping your team working throughout.

Hypercare

After go-live we provide a defined support window to resolve issues quickly, then decommission the old platform once you confirm everything is stable.

Google Workspace & Microsoft 365 Migration FAQs

Can you migrate from Google Workspace to Microsoft 365, and the other way around?

Yes. We handle both directions and have moved companies from Google Workspace to Microsoft 365 and from Microsoft 365 to Google Workspace, as well as from Exchange Server, IMAP, and GoDaddy. The approach changes with the source and target, which is why we start with discovery rather than a fixed recipe.

Will we lose any email or data during the migration?

No, and we prove it. We capture item counts on the source, migrate in waves, then reconcile counts and spot-check content on the target before we cut over. Keeping the old environment live during the move means there is always a source of truth to fall back on.

How much downtime should we expect?

For most businesses, effectively none. A coexistence approach runs both platforms together with dual mail flow, so email keeps arriving and the final DNS switch is transparent. Industry analysis finds that about 23% of internally run Microsoft 365 migrations hit extended downtime or data loss, and a planned cutover is how we avoid joining that group.

How long does a migration take?

It depends on the number of mailboxes, the volume of files, and the source platform. A small business can finish in a week or two, while a larger move with shared drives and tenant consolidation runs several weeks. The assessment gives you a firm timeline before you commit.

Can you handle a tenant-to-tenant move after a merger or acquisition?

Yes. Tenant-to-tenant work is one of the trickier scenarios because of overlapping accounts, domain conflicts, and licensing. We plan the identity and domain changes carefully and merge data without overwriting anyone’s mailboxes or drives.

What happens to single sign-on, MFA, and user access?

We carry identity and access across as part of the project. That includes account provisioning, single sign-on, and multi-factor authentication, often building on Microsoft Entra ID or your existing directory. We also connect line-of-business integrations that depend on those accounts.

Do you help with security and compliance, including HIPAA?

Yes. We carry over retention, encryption, and access policies so your posture does not regress during the move, and we coordinate with your cloud infrastructure team on hardening. For regulated data, we provide HIPAA and compliance guidance as part of planning.