Microsoft 365 Tenant to Tenant Migration

Expert Microsoft 365 tenant to tenant migration services for mergers, acquisitions, and organizational changes. Migrate Exchange Online, OneDrive, SharePoint, Teams, and all Microsoft 365 data between tenants with zero downtime.

Common Tenant Migration Scenarios

When you need Microsoft 365 tenant to tenant migration

Mergers & Acquisitions

Consolidate multiple Microsoft 365 tenants after company mergers or acquisitions

Company Spin-offs

Split Microsoft 365 tenant when divesting or creating separate business units

Tenant Consolidation

Merge multiple tenants into a single tenant for better management

Organizational Restructuring

Reorganize data across tenants due to business structure changes

Complete Tenant Migration Coverage

We migrate all Microsoft 365 data and services between tenants

Exchange Online

  • All emails
  • Mailboxes
  • Shared mailboxes
  • Distribution lists
  • Email rules
  • Signatures

OneDrive for Business

  • All files & folders
  • Sharing permissions
  • Version history
  • Sync settings
  • File metadata

SharePoint Online

  • Sites & subsites
  • Document libraries
  • Lists & libraries
  • Permissions
  • Workflows

Microsoft Teams

  • Teams & channels
  • Files & documents
  • Conversations
  • Tabs & apps
  • Meeting history

Microsoft 365 Groups

  • Group mailboxes
  • Group files
  • Planner tasks
  • Calendar events
  • Member permissions

Contacts & Calendar

  • Personal contacts
  • Shared contacts
  • Calendar events
  • Meeting invites
  • Resource calendars

Our Tenant Migration Approach

Proven methodology for Office 365 tenant to tenant migration

01

Discovery & Planning

Comprehensive analysis of both source and target tenants, user mapping, and migration strategy

02

Pre-Migration Setup

Configure target tenant, create users, set up security groups, and prepare infrastructure

03

Pilot Migration

Test migration with a small group to validate process and identify potential issues

04

Full Migration

Execute complete tenant migration with continuous monitoring and real-time support

05

Validation & Support

Verify data integrity, test functionality, train users, and provide ongoing support

Challenges We Handle

Complex scenarios in Microsoft 365 tenant migrations

User Identity Management

Handle complex user provisioning, UPN changes, and authentication methods during migration.

We map users accurately and ensure seamless authentication transition

Permissions & Security

Preserve complex permission structures, security groups, and access controls across tenants.

Complete permission mapping and security group recreation

Minimal Downtime

Business continuity is critical during tenant migrations with thousands of users.

Phased migration approach with coexistence period

Large Data Volumes

Migrating terabytes of data across Exchange, OneDrive, SharePoint, and Teams.

High-speed migration tools and parallel processing

Dependencies & Integrations

Third-party apps, custom integrations, and workflows connected to the tenant.

Comprehensive discovery and reconfiguration planning

Compliance & Retention

Meeting legal hold, eDiscovery, and data retention requirements during migration.

Maintain compliance policies throughout the process

Tenant Migration FAQ

How long does Microsoft 365 tenant to tenant migration take?

Timeline varies based on data volume and user count. Small organizations (under 100 users) typically complete in 1-2 weeks. Large enterprises (1000+ users) may take 4-8 weeks. We provide detailed timeline estimates after initial assessment.

Will users experience downtime during tenant migration?

We minimize downtime through coexistence configuration. Users can access email during migration, though there may be brief interruptions (1-2 hours) during final cutover. We schedule cutovers during off-peak hours.

Can we migrate selected users or all users at once?

We support both approaches. Phased migration allows gradual user transition, while big bang migration moves everyone simultaneously. We recommend phased migration for large organizations.

What happens to Teams conversations and chat history?

Teams conversations cannot be directly migrated due to Microsoft limitations. However, we can export and archive conversations for compliance purposes. All files, channels, and structure are fully migrated.

Will email addresses change after migration?

Email addresses can stay the same if you're using custom domains. We configure the target tenant with your domains before migration to ensure email continuity.

How do you handle hybrid Exchange environments?

We have extensive experience with hybrid scenarios. We coordinate with your on-premises Exchange infrastructure to ensure smooth migration of both cloud and on-premises mailboxes.

What about third-party apps and integrations?

We inventory all connected apps and integrations during discovery. Most can be reconnected to the new tenant. We provide detailed documentation for reconfiguration.

Ready for Your Tenant Migration?

Get a free consultation and detailed migration plan for your Microsoft 365 tenant to tenant migration

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