Domains allow you to further refine access within the context of an Organization. Domains are used as the primary association mechanism of Products to Users. In other words, if you wish a User to have access to a product, that user must be added to a Domain which already has that Product associated (the property is called associatedOrgProducts). Only those Products associated to the parent Organization are available to be associated to a child Domain. Every Organization automatically has an Administrative Domain created to allow access to the UEAuth product. It is not recommended that you add users to this Domain other than those who you wish to manage users, domains and roles.