Introduction
Azure Active Directory (Azure AD) tenants are like separate accounts that hold users, groups, and apps. Each tenant is a directory that keeps these identities safe and organized. This helps companies manage who can access their cloud resources.
When you want to keep user accounts and permissions separate for different companies or projects.
When you need to control access to cloud apps and services for your organization.
When you want to create a secure space for your employees to sign in and use Microsoft services.
When you want to manage multiple organizations or subsidiaries under one cloud platform.
When you need to set up single sign-on for your apps using a trusted identity provider.