Extend Azure Active Directory Schema using Graph API (preview)

Edit – Please refer to http://msdn.microsoft.com/en-us/library/azure/dn720459.aspx for official documentation about directory extensions. Directory schema extensions enable application developers to extend the directory and develop richer applications without worrying about the limitations imposed by an external store. This preview provides REST interfaces for an application to register, unregister, enumerate, read, write, and filter by extension values….

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