SCN 3007 Forces the coil number to be unloaded via prompt selection on a tail-out. We do not expect a coil number to be loaded on tail-in unless the operator has entered it via the GUI or via barcode macro. When encountered, the most likely scenario is that they intended this to be the next coil and it would be annoying and possibly error prone to prompt again. For this reason a Tail-In is ignored when a coil number has already been entered.