When an item is marked as withdrawn it probably shouldn't show in the OPAC. If we want to please the most people then we should have a sys pref like we do with lost items to ask whether withdrawn items should show in the OPAC.
To add to this, we already have preferences for damaged and lost items, so adding one for withdrawn just seems to make sense.
We use OpacHiddenItems syspref in our library to hide Withdrawn and Lost items.
(but see bz 8462)
Rennes 2 university
Withdrawn items can be hidden using the OpacHiddenItems system preference, marking RESOLVED FIXED.