Azure AD Integration with Sitecore 10.2 Sitecore identity server that comes with Sitecore 9.1 allows you to log in through an external identity provider like Azure Active Directory, Facebook, Apple, or Google. It is built on Federation Authentication. What is Federation Authentication? Federation authentication is a technology to allows users to access multiples application, tools, and domains using one credential. Using one set of credential user can access multiple applications, and resources after authentication. Federation authentication consists of two systems, the Identity provider and the Service provider. Identity providers that maintain/create/manage identity information like name, email address, device, and location. Some examples of identity providers are Azure AD, Google, Facebook, and Apple. Service providers basically refer to a website, software, or app that the user is trying to access and SP basically relies on the identity provider to authenticate the user ...