An administrator (or any user with the appropriate permissions) can create user accounts by following this procedure:
Go to Profile > Users section
Click on the add button (+) next to the desired role
Fill in the form; all fields in the new profile are mandatory
Click Save
The platform will then send an account activation email to the user, at the email address provided, which will allow them to complete their registration.
It is possible to resend the activation email. A user attempting to access an account that has not yet been activated is presented with the option to request a resend of the activation email.