An organization should consider Microsoft Azure Active Directory if they subscribe to Office 365 services, or other compatible web services.
Azure Active Directory is a Microsoft service that allows your employees to interact with both internal and external users in a secure way, in external resources such as Microsoft Office 365, the Azure portal, and other SaaS applications.
Also, in internal resources, such as apps on your corporate network and intranet, along with any cloud apps developed by your own organization.
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Also, watch this video on Azure: