Hi Kristin
To avoid integrity errors, they can't be on current or historical invoices either. Or historical purchase orders or receipts.
It's best not to delete items, but rather to make them inactive. If you have access to Toolkit for Adagio (
http://www.dakotasoftware.com/toolkit.html) a better strategy is to merge them all into one obsolete item code (actually one for each stocking unit of measure). That way the history is preserved, data integrity is clean, yet the item list is trimmed.
Steve