Azure Active Directory (Azure AD) is a comprehensive, highly available cloud solution for identity and access management that combines centralised directory services, advanced identity management and application access management. Azure Active Directory also provides a comprehensive, standards-based platform that enables developers to provide access control for their applications based on centralised policies and rules.
External resources such as Microsoft 365, the Azure Portal and thousands of other SaaS applications, as well as internal resources (for example, apps on your organisation's network/intranet or cloud apps developed in-house by your organisation) are accessible.