Shipping cost calculation dropdown options can include Manual, Global or Customer (if Customer specific shipping is active for the account) as a shipping rate option.

• Manual allows you to key in any value desired as the shipping charge.
• Global calculates a shipping cost based on the default global shipping settings set in Admin | Delivery Methods.
• Customer calculates a shipping cost based on the shipping settings set in the customer record under Edit Customer | Shipping Rates (you can also select the link next to Shipping Rates in the Settings widget on customer view). In order to have the option to set Customer specific shipping rates, you must first select the option “Allow special shipping rates to be assigned per customer” as the default in Admin | Delivery Methods.