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Premiums may be customized to a greater extent by limiting their display schedule and the available inventory.

The following provides a detailed description of the listed fields:
Each option may be set to display on a specific date and disappear on a certain date. If an option is to be displayed indefinitely, leave the stop date field blank. For example:
Check the box if the product requires shipping. Once shipping is activated, the checkout page will ask for shipping information in addition to the billing information. Shipping fees will also be added based on shipping rates [Read more: Shipping].
Shipping scale is a dimensionless unit that may be used for shipping. Scale may be used as quantity, weight, price, or another unit applicable. For example:
In the Shipping definitions, the following rates are defined:
Patron's basket selection:
As long as the scales are defined uniformly and items with similar shipping scales are added to a checkout page the shipping rate will be consistently calculated. As stated earlier, the shipping scale may be based on any metric, e.g. weight, price, quantity, etc.
Total inventory for the option may be set and adjusted. Once a product has been sold out (inventory reaches zero) the item will disappear from all checkout pages. Inventory may be adjusted at anytime by increasing or decreasing the number in the field.