Changes that you make on this screen will be applied only to the inventory item currently selected from the Item name list on the left-hand side of the screen.
The bottom half of this screen contains a drop-down list of common units measure (UOM). Select a unit of measure to associate with the item quantity. The two letter abbreviation for the selected UOM will be shown in the Point-of-Sale screen under the UOM column, as well as on your web site, and the full UOM name will appear on your web site.