USER LICENSE AND PROFILES:

USER LICENSE 

You may have more than one type of user license in your organization. A user license entitles a user to different functionality within Salesforce and determines which profiles and permission sets are available to the user.

·         To view a list of the active user licenses in your company, from Setup, click Company Profile àCompany Information. This page lists the following for each type of user license:

·         Status indicates the status of the license.

·         Total Licenses indicates the number of licenses for which your company is billed and that are available to you.

·         Used Licenses is the number of licenses that you have assigned to users.

·         Remaining Licenses is the number of unused licenses.

PROFILE 

Represents a user profile. A profile defines a user's permission to perform different functions within Salesforce.
Every profile Must be associated with a License. This defines what the profile can do

you can retrieve and deploy access settings for the following managed components in profiles and permission sets:

·         Apex classes

·         Custom apps

·         Custom field permissions

·         Custom object permissions

·         Custom tab settings

·         External data sources

·         Record types

·         Visualforce pages