Here is an overview of the key aspects of Office 365 tenant-to-tenant migration:
1. Reasons for Tenant-to-Tenant Migration:- Mergers and Acquisitions: When organizations merge or acquire others, they may need to consolidate Office 365 environments.
- Divestitures: In cases of business divestitures, separating Office 365 tenants might be necessary.
- Organizational Restructuring: Changes in the organizational structure may require a realignment of Office 365 tenants.
2. Key Challenges:
- Data Migration Complexity: Transferring large volumes of email, documents, and other data without data loss or corruption.
- User Identity and Authentication: Managing user identities, passwords, and ensuring a seamless authentication experience.
- Collaboration and Communication: Maintaining collaboration tools, calendars, and ensuring uninterrupted communication.
- Licensing and Subscriptions: Handling changes in licensing and subscription plans during and after migration.
3. Planning and Preparation:
- Assessment: Evaluate the existing Office 365 environment to determine the scope of migration, including data volume and user accounts.
- Communication and User Training: Inform users about the migration plan, potential disruptions, and provide training on using the new environment.
- Mapping and Preparing Data: Map out the data to be migrated, including email, SharePoint sites, and OneDrive files. Preparing data ensures a smoother transition.
4. Migration Methods:
- Cutover Migration: Moving all mailboxes and data at once.
- Staged Migration: Migrating mailboxes in batches.
- Hybrid Migration: Combining on-premises Exchange with Office 365 during migration.
Also, to learn about Exchange 2013 to Exchange 2019 migration visit O365CloudExperts.
