What does a Global Admin do?
The admin for all of the O365 Tenant
It is the first person who creates the account or tenant
What does a Billing Admin do?
Makes the purchases
Manages the subscriptions
Handles the billing
What does the Password Admin do?
Resets the passwords
What does the Service Admin do?
Opens support request and views the dashboard
See if there is any problems for O365 (Health Status)
What is Delegated Admin?
Where a Microsoft Cloud Partner can send a delegated admin offer