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Cloud Computing · Foundational

Microsoft Entra Tenant

A dedicated, isolated instance of Microsoft Entra ID representing an organization, identified by a tenant ID and domain.

Definition

A tenant is created when an organization signs up for a Microsoft cloud service and contains its users, groups, app registrations and policies. Azure subscriptions trust exactly one tenant for identity, and a tenant can own many subscriptions. Custom domains are verified in the tenant with DNS records.

Example

Contoso's tenant contoso.onmicrosoft.com has the custom domain contoso.com verified with a TXT record.

Exam tip

A subscription trusts one tenant at a time; moving a subscription to another tenant removes existing RBAC assignments.

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