O365 TYPES OF USERS

Types of users
On the Active users page in the Office 365 admin center, you can filter by the following types of users.
Type of user
Definition
Licensed users
These users have been assigned an Office 365 license, such as Office 365 Business Premium or Office 365 Enterprise E3, so they can be use Office 365 services.
Sign-in allowed
These users can sign into Office 365 to create documents, check email, and so forth. Most of your users should be able to sign in at any given time.
Sign-in blocked
These users cannot sign into Office 365. An example of this is a user who left the company and you blocked their access to Office 365.
Unlicensed users
These users have no Office 365 license, like Office 365 Business Premium or Office 365 Enterprise E3, so they can't use Office 365 features. Examples are administrators who only need to manage Office 365, employees who have left the company, or shared and resource mailboxes that aren't associated with people.
Users with errors
These users have errors associated with their account that need to be resolved.
Billing admins
These users can make purchases, manage subscriptions, manage support tickets, and monitor service health on your behalf.
Global admins
These users have access to all administrative features. The person who signs up for Office 365 becomes a global admin but you can have more than one if you like. Global admins are the only admins who can assign admin roles to others.
Password admins
These users can reset passwords, manage service requests, and monitor service health on your behalf.
Service admins
These users can manage service requests and monitor service health on your behalf.
User management admins
These users can reset passwords, monitor service health, manage user accounts, user groups, and service requests. They can’t delete a global admin, create other admin roles, or reset passwords for billing, global, and service admins.
Add custom filter
With this option, you can create a custom filter to view only certain types of users of your preference, such as which users are on the Office 365 Business plan. Learn more.