All About Microsoft 365 Tenant Identifiers

Every Microsoft 365 tenant has a tenant identifier, a unique GUID that’s used within the Entra ecosysystem to identify a tenant and its objects. Much has changed since I last wrote about this topic in 2021, including the introduction of new Graph APIs to resolve tenant names to identifiers and vice versa.

 

https://office365itpros.com/2024/03/28/tenant-identifiers/