Click the “Invite Users” button.
A dialog will appear and it will also display the number of licenses you currently have available.
To invite a user, you will need their email, set a username and assign them a role.
Users you are inviting must be assigned a role. You can only assign a role if you have enough licenses for that role remaining.
Click “Send Invitation” once you are done. If the invites were successful, you will get the following dialog
If an invitation could not be sent, you will get the following dialog
The most common cause of an invitation not being successfully sent is a username is already taken by another user. Try another username and then click resend.