Follow the following steps to add user to Office 365 admin center.
- Sign in to Office 365 with your work or school account at URL https://portal.office.com
- Go to the Office 365 admin center by clicking the thumbnail as highlighted in the screen below.
- In the Left hand navigation pan, Choose Users and click Active Users.
- Click "Add" or "Plus" icon as shown in the following screen shot.
- A Modal Popup for create user will appear
- Enter First Name and Last name, which are optional.
- Display name will be a combination of First and Last name or you can add one of your choice.
- User name will be part of email address, user will use to login to site. If tenant has more than one domain, select appropriate domain as well.
- Select one from the Auto generated or Type Password. If Auto generated, Office 365 will display a password on next screen. If Type Password, it will allow you to add a password.
- Type the Email address of the user where you want to receive information about this account.
- Last option is for License, which is assigned to this user. If you do not have any license, leave it for future assignment or select from the available option how many licenses you want to assign this user.
- Click "Create" and a new user will be created.
