In a tenant-to-tenant migration process, you have the option of moving your data from your source tenant into one single target tenant or into multiple tenants. Let’s see the benefits and limitations of each case. For a single tenant This is the most common approach and the best option for most organizations. It’s a simpler process in which all users stay within the same “company” (tenant), being able to collaborate more seamlessly through all the Microsoft 365 apps and services. A single-tenant migration also means IT will have a simpler job securing the target tenant. For multiple tenants This approach is recommended for organizations with many departments, sister companies, different geographic locations, and global end users—meaning that the business would have to comply with various data protection legislations and deal with different license providers. For day-to-day use, the main difference from the single-tenant approach is that collaboration becomes more complicated since users from one tenant will have to be guests in the other. And mainly because of those guest permissions, securing multiple Microsoft 365 tenants is a harder job than doing it in a single one. The good news is that any migration project doesn’t have to be daunting! ShareGate’s Office 365 migration checklist simplifies the process, providing step-by-step guidance to guarantee a successful migration journey.