With the different versions now available for Microsoft CRM 2013, customers have greater choice for licensing.
There now exist three different types of licenses for Dynamics CRM end users:
Professional—The professional license is designed to deliver full-featured functionality of the application. No usage limitations apply with this license.
Basic—The basic license limits some functionality of the application, and is designed for users at entry levels.
Essential—The essential license has little native functionality allowed, but is an ...