Members registering interest in an outside trainer — the front-desk paper sign-up sheet, digitised. The desk owns this queue: contact the member, tell the trainer, and move the enquiry along so the member sees where they stand in the app. Anything still New after 48 hours is flagged in red. Nothing here books a session or charges anyone.
For an enquiry taken at the desk or over the phone, so nothing has to go back on paper.