Cross Tenant Microsoft 365 Migration

This document explains Microsoft 365 cross-tenant migrations, detailing the roles involved (e.g., MCS, partners, IT admins, identity architects), available native and third-party tools (Cloudiway, AvePoint, BitTitan, Quest, SkyKick, ShareGate, CodeTwo), and a comparative overview of capabilities across services like mailboxes, OneDrive, SharePoint, Teams, and devices. It emphasizes preparation, identity mapping, data integrity and security, change management, and post-migration validation to ensure minimal disruption and successful tenant consolidation or reorganization.