I evaluated spbas some years ago and if I remember correctly, I think on installer, it was asking email/username/password etc. username/password was used to create admin account only, but email was sent to them, if not exists creates an account with random username/password and email them in welcome email to user and also generates a license and assign the license to the recently created account and send it remotely to installation. Again it was too many years ago I’ve ever tried spabs so I may be wrong.