The easiest way to invite unregistered users is to bulk invite them!
Here's how:
Click on 'Your Organisation' icon on the blue left-hand Navigation Bar.
Those who have not yet been invited will have ‘Unregistered’ under the permissions.
Tick the box on the left hand side of the person’s name to select all those you wish to invite.
Click on the ‘Bulk Actions’ button at the top right and select ‘Invite’ from the drop down menu.
Confirm that you wish to invite those people and they will be emailed a link to join Beamible.
Note! you cannot grant permissions until they have been invited.