You can only add Users with a Draft/ Invitation Sent/ Invitation Expired Status.

To add the User, 

1) Login to your Board.Vision portal as an Administrator*.

2) From the left navigation menu, select Users

3) In the View User Basic Information page, click on Add.

4) Input all the information in the Mandatory field

5) Activate and Send Invite

*This feature is available depending on your access level.