Company acquisitions often require rapid tenant migrations without downtime. Our IT department faced this challenge recently while moving 350+ users from an acquired company into our main Microsoft 365 tenant. We used MailsDaddy Cross-Tenant Migration Service, and it delivered outstanding results.
The tool’s speed and precision stood out. Using Microsoft Graph API, it ensures secure data transfer without risking compliance. The interface is easy to use, allowing quick mapping of users via CSV and applying filters for folder and date selection. We could also monitor every mailbox in real-time through a centralized dashboard.
Delta migration was a lifesaver because we ran a test migration before the final switch, then synced only new or modified data later. This approach avoided any disruption for end users. It also preserved folder structure, contacts, calendar entries, and OneDrive files perfectly.
The support team guided us throughout the project, ensuring zero data loss and full reporting for compliance audits. If you’re managing M&A transitions, this service will simplify your migration strategy.
Visit here: https://www.mailsdaddy.com/services/cross-tenant-migration.php