You use a Microsoft account to sign in to the Microsoft Azure Management Portal when you configure Microsoft Dynamics NAV for use of Azure Active Directory (Azure AD) as authentication mechanism, or if you deploy Microsoft Dynamics NAV on Azure.
To obtain a Microsoft account
Visit the sign-up page.
For more information about Microsoft accounts, see the What is a Microsoft account?.
See Also
Concepts
Authenticating Users with Microsoft Azure Access Control ServiceAuthenticating Users with Azure Active Directory
Users and Credential Types
Integrating Microsoft Dynamics NAV in SharePoint Sites
Preparing for Deploying Microsoft Dynamics NAV on Microsoft Azure
Deploying Microsoft Dynamics NAV Using the Example Scripts
Deploying and Managing Microsoft Dynamics NAV on Microsoft Azure