The Contacts module in CHEQROOM allows you to stay on top of the various entities that will receive equipment from your organization via Reservations, Check-outs or Custody.
Contacts are added to Reservations and/or Check-outs.
A Contact can't actually log in to CHEQROOM, but a User can. However, a Contact can be linked to a User.
When inviting Users to your account, they will automatically be added as a Contact as well.