Microsoft 365 · Migration · Google Workspace · Exchange · Tenant Consolidation
A Migration That Goes Wrong
Takes Months to Untangle.
The last thing you want on cutover day is missing emails, broken permissions, and employees who can’t find their files. TechWise validates data integrity at every step, cleans up permissions before cutover, and stays active through stabilization, so the environment is working before employees are expected to work in it.
● Microsoft Solutions Partner
● Data integrity validated at every batch
● Permissions cleanup before cutover
● Hypercare through stabilization
Migration Types
Three Source Environments.
Three Different Migration Profiles.
Each migration type has a different technical profile, different tooling, and a different delivery approach. TechWise scopes the specific migration before producing a timeline. The range varies significantly depending on user count, data volume, and source environment complexity.
Migration Type 01
Google Workspace to Microsoft 365
Technically complex: email, calendar, Drive files, and collaboration tools all require careful data mapping and format conversion. Most MSPs lack the depth to execute it reliably. TechWise has delivered this migration repeatedly across mid-market organizations and has the methodology to do it without data loss.
→ Email, calendar, and contacts migrated with format conversion
→ Google Drive files mapped and migrated to OneDrive and SharePoint
→ Teams deployed as the collaboration hub
→ Cutover coordination: minimal business disruption
Migration Type 02
On-Premise Exchange to Exchange Online
For organizations approaching Exchange end-of-support or consolidating to cloud email. Mail, calendar, contacts, and public folders migrated with permissions reviewed and cleaned before cutover. Not after.
→ Mail, calendar, and contacts migrated
→ Public folders migrated or restructured
→ Permissions reviewed and cleaned pre-cutover
→ Hybrid configuration where required during transition
Migration Type 03
Post-Acquisition Tenant Consolidation
Multiple Microsoft 365 tenants merged into one governed environment after an acquisition or merger. Permissions audited across both tenants, guest access remediated, and governance applied to the combined environment.
→ Permissions audit across both tenants
→ Guest access and external sharing remediated
→ Data consolidated with integrity validation
→ Governance applied to the merged environment
How It’s Delivered
Cutover Is Phase Five.
The Work Starts in Phase One.
Every migration runs discovery through hypercare, because the work doesn’t end at cutover. TechWise stays active through stabilization so issues that surface in the first days of operation get resolved before they become habits.
01
Discovery
Current-state assessment and migration plan before any work begins.
TechWise inventories the source environment: data volume, user count, complexity, and existing permissions, before producing a migration plan with timeline and milestones. Scope and timeline are defined before any work begins.
→ Current-state assessment and data inventory
→ Architecture design for the destination environment
→ Migration plan with timeline and milestones
02
Migration
Data migrated in batches. Integrity validated at each one.
Migration runs in batches. Not as a single cutover event. Each batch is validated before the next begins. Permissions are cleaned up during migration, not after. Teams and SharePoint are deployed as data arrives so the destination environment is ready for employees before they switch over.
→ Email, calendar, and data migration in batches
→ Integrity validation at each batch, not just at the end
→ Permissions audit and cleanup during migration
→ Teams, SharePoint, and OneDrive deployed in parallel
03
Validation
Client signs off on data completeness before cutover.
Testing happens before cutover. Not as a discovery exercise after employees are already in the new environment. Client sign-off on data completeness and security configuration is required before the go-live date is confirmed.
→ Testing before cutover. Not after
→ Client sign-off on data completeness
→ Security and governance configuration verified
04
Training
Role-specific training. Employees confident before they switch over.
For employees moving from Google Workspace, the change in interface and workflow is significant. TechWise delivers role-specific training before go-live. Not a recording sent after the fact.
→ Role-specific sessions. Not generic end-user training
→ Focused on the specific migration: what changed and where things are now
→ Administrator training for ongoing management
05
Go-Live
Active support at cutover. Issues resolved in real time.
TechWise is present at go-live. on-site or remote depending on scope. Cutover is executed with active monitoring, and issues that surface on the day are resolved before they escalate.
→ On-site or remote go-live support
→ Cutover execution with active monitoring
→ Real-time issue resolution
06
Hypercare
Active support through stabilization. TechWise steps back when things are stable. Not when the calendar says so.
The first days in a new environment surface issues that testing didn’t catch. TechWise stays active through the stabilization period, resolving issues before they become entrenched workarounds.
→ Active support through post-go-live stabilization
→ Issues resolved before TechWise steps back
→ Handoff documentation: what was migrated and how the environment is configured
Migration Types
Three Migrations. Three Technical Profiles.
One Scoping Conversation.
Each migration type has a different technical profile, different tooling, and different risk points. TechWise scopes the specific migration before producing a timeline. The approach differs meaningfully depending on what the organization is moving from.
Google Workspace to Microsoft 365
Mail, Calendar, Drive, and Collaboration History.
Google Workspace migrations involve mail, calendar, contacts, Google Drive files, and shared drive content. The technical complexity is in permissions mapping. Google Drive permissions do not translate directly to SharePoint and OneDrive. TechWise validates data integrity at every batch, maps permissions before cutover, and runs parallel environments during stabilization so users can access both systems while the migration completes.
On-Premise Exchange to Exchange Online
Mailboxes, Public Folders, and Coexistence.
Exchange on-premise to Exchange Online migrations require a coexistence period where both environments run simultaneously, mail routes correctly between them while mailboxes move in batches. Public folder migration, shared mailbox handling, and distribution list management each have specific technical requirements. Cutover timing is critical: TechWise runs MX record changes outside business hours with rollback procedures in place.
Tenant Consolidation
Two Microsoft 365 Tenants Merged Into One.
Post-acquisition tenant consolidations are the most complex migration type. Two organizations running separate Microsoft 365 tenants need to merge mailboxes, SharePoint sites, Teams channels, user identities, and license structures into a single environment, without losing email history, breaking calendar permissions, or disrupting active collaboration. TechWise has run tenant consolidations for post-acquisition integrations and understands what breaks if the sequencing is wrong.
Common Questions
Questions About Microsoft 365
Migration.
Tell Us What’s Broken.
We’ll Tell You How to Fix It.
Every managed engagement starts with a free assessment of your environment: no scope surprises. Tell us what’s broken, what’s keeping you up at night, or what you’re trying to build. We’ll tell you exactly what it takes and which model fits.