GOOGLE WORKSPACE DOMAIN MIGRATION
Know What You’re Moving Before You Migrate.
Moving users and data is only part of a successful Google Workspace migration. Before anything moves, you need to know what exists, who owns it, who can access it, and what could be left behind.
Audit the source environment, plan the move, protect access, and validate the destination before the old environment is retired.
- No credit card required
- Enterprised-grade security
THE MIGRATION GAP
Moving the Data is Only Part of the Migration.
A migration can be complete without everything being right. Files can arrive with unexpected ownership. Users can lose access because an old Group no longer exists. Shared Drive memberships may change. Business files owned by external or personal Gmail accounts can remain outside your control.
- The question is not simply “Did the data move?” It is: Did the right data move, with the right ownership and the right access?
01 / SCOPE
What are you actually moving?
Users, Drive, Shared Drives, Gmail, Groups, calendars, permissions and organizational structure all need consideration.
02 / ACCESS
Who owns and accesses it today?
Ownership, Groups, external sharing and domain-level permissions determine whether work continues after migration.
03 / UNKNOWN
What could get left behind?
Suspended users, orphaned content, shared-in files and externally owned files can fall outside the expected migration scope.
MIGRATION SCOPE
What Needs to Move in a Google Workspace Domain Migration?
Define the data, identities and access relationships that need to exist in the destination.
My Drive
Files, folders, ownership and sharing
Shared Drives
Content, members, roles and access permissions.
Gmail
Messages, attachments, labels, filters, delegation and forwarding
Groups
Memberships, settings and Group-based access
Users & OUs
Accounts, organizational structure, licenses and attributes
Calendar
Events, resources and sharing.
Permissions
Users, Groups, domains and external access.
Shared-in content
Files users rely on but your organization does not own.
PRE-MIGRATION AUDIT
Before You Move Anything, Audit What You Have
You cannot define a reliable migration scope from user lists alone.
Build a baseline of the source environment so you know what needs to move, what needs to change, and what should not be carried into the destination.
Audit the source
What it can reveal
- These findings can change your migration plan. They help determine which accounts and data should move, how ownership should be mapped, which access should be recreated, and what can be cleaned up before migration.
THE MIGRATION PROCESS
A Safer Migration Starts With a Controlled Plan
A successful Google Workspace migration needs a clear baseline, careful mapping, and validation after the move. Follow these five stages to reduce ownership, access, and data gaps.
Audit
Understand users, data, ownership, sharing and access before anything moves.
Map
Define destination users, Groups, ownership and permissions.
Migrate
Start with a representative pilot before moving larger groups.
Validate
Compare the destination against the source baseline.
Review
Audit the destination again after 30 and 90 days.
Plan the Migration Beyond the Data Transfer
GAT LABS SOLUTIONS
Support Every Stage of Your Google Workspace Migration
GAT gives administrators the visibility and controls to make migration decisions based on what actually exists, then manage the account, ownership and access changes around the move.
Audit & Validate
- Review users, Drive ownership, sharing and storage
- Find externally owned and shared-in files
- Identify inactive and suspended accounts
- Compare access and activity before and after migration
Prepare & Manage
- Bulk create, update and manage user accounts
- Rebuild and manage Google Groups and memberships
- Apply organizational and directory changes at scale
- Automate onboarding, offboarding and lifecycle actions
Protect Sensitive Changes
- Change Drive file and folder ownership
- Modify sensitive sharing permissions
- Transfer content while maintaining controlled access
- Require a second authorized person to approve sensitive actions
Frequently Asked Questions
Google Workspace Domain Migration
How do I migrate from one Google Workspace domain to another?
Start by auditing the source environment so you know which users, files, Shared Drives, Groups, permissions, and external access relationships need to move. Then map the destination, run a pilot migration, validate the results against the source, and complete a final review before retiring the old environment.
What should I audit before a Google Workspace domain migration?
Review users and organizational units, Drive ownership, Shared Drives, Groups, external and public sharing, permissions, suspended and inactive accounts, shared-in files, storage, and sensitive data. The goal is to build an accurate baseline before deciding what should move and how the destination should be configured.
What happens to Google Drive permissions during a domain migration?
Permissions depend on users, Groups, domains, Shared Drive membership, and external identities. When those identities change, access may need to be mapped or recreated in the destination. Do not assume permissions will carry over correctly. Validate ownership and access after migration against the source environment.
What happens to files owned by personal Gmail accounts?
A file can be important to your organization without being owned by your Workspace domain. Files owned by personal Gmail accounts or other external users may remain outside your control after migration. Identify these files before the move and decide whether access should remain external or whether the organization needs its own managed copy.
Can Shared Drives be migrated between Google Workspace domains?
Yes, with the appropriate migration method and configuration. Shared Drives should be inventoried before migration, including content, members, roles, permissions, and external access. Recheck those relationships in the destination rather than assuming they were recreated exactly as expected.
How do I know if a Google Workspace migration was successful?
Compare the destination against the source baseline. Check users, files, ownership, Shared Drives, Groups, permissions, external sharing, and actual user access. A migration is complete only when the right data is present and the intended users can access it with the correct ownership and permissions.
Should I audit Google Workspace again after migration?
Yes. Run another review around 30 days and 90 days after migration. Look for new external sharing, unexpected ownership, unused legacy accounts, orphaned content, Shared Drive access changes, and unresolved access problems that may only appear once users return to normal work.
Move With a Clear Picture of What You're Leaving Behind
Audit users, ownership, permissions, sharing and Workspace data before migration, manage the changes around the move, and verify the destination against your source environment.
