The 'Special Pricing' tab in an inventory item allows you to specify a price that is only valid for a certain date range, a unit of measure, and warehouse. Enter the unit of measure, date range, and the special unit price needed. The warehouse can be left blank to apply that price to all warehouses, or a warehouse can be specified to only apply that price for one warehouse. See also:Promotions.
NOTE: This does not become the new base price for that date range, it is only a special price. This means that other discounts will not be applied on top of it. Also, if the special price is not the best price for a certain customer, it will not be used.