Till screens · copy preview · appears after minutes with nobody at the counter
The warning, before anything locks
Locks in 20
The sale on screen is kept exactly as it is — locking never clears a cart.
I'm here — keep going
Locked
The sale is kept. Enter your PIN to pick it up right where it left off.
Nothing was sent and nothing was lost — a cart only reaches the ledger when the sale is rung. Any staff PIN unlocks the till; the sale stays under whoever rings it through.