The GM-side counterpart to players' Contact Admin requests. Every message a player sends lands in your Adventure's Player Requests inbox — searchable, and filterable by status: All, Pending, Read, Resolved, or Dismissed.
Treat this like any support queue: triage first (skim what's new), respond or resolve directly with the player through whatever channel makes sense (in person, email, or a quick fix to their progress if that's what they're asking about), then mark it Resolved or Dismissed so your Pending list stays a true "still needs attention" list rather than a graveyard of old tickets.