FreeViewer Office 365 Tenant Migration Tool

The FreeViewer Office 365 Tenant Migration Tool is an enterprise-grade utility engineered to simplify complex cross-tenant data transitions during mergers or rebranding. Designed for IT admins, it automates the secure transfer of user workspaces with zero downtime.

Core Capabilities:

Comprehensive Transfer: Seamlessly migrates Mailboxes, OneDrive for Business, Contacts, and Calendars in one process.

Smart Delta Migration: Perform an initial bulk move, then use incremental sync to migrate only new data before cut-over, preventing duplicates.

Advanced Filtering: Apply date-range filters to surgically migrate critical data and exclude legacy clutter.

Automated Mapping: Link source and destination accounts easily via bulk CSV import or auto-fetch.

Metadata Preservation: Maintains original folder hierarchies, timestamps, headers, and Read/Unread status.

Enterprise Security: Utilizes Modern Authentication (OAuth 2.0) via Azure App Registration, requiring no user passwords.