With SharePoint 2013 Microsoft has Introduced User License Enforcement Capabilities – that means different licenses can be assigned to different users based on Active Directory security groups that are added in.A group of admins for example would need features that are offered by Enterprise license but a group end users on the other hand can work with Standard license and would not need to pay more.By default the User License Enforcement is disabled and must first be enabled to begin assigning, using, and implementing user licensing capabilities.