It's common for stores to base the amount they charge for shipping on the quantity of items the customer is ordering. For the following example, let's suppose you operate a store where you would like to charge a base of $5.00 handling for every order. In addition to that, you'd like to charge $1.50 for each of the first three items to be shipped, plus $0.50 for every item after the third. This sort of policy corresponds to a "Cumulative Quantity Table" shipping method type.
Example 6.2. Charging Shipping Based on the Quantity of Items in the Order
Leave Minimum Charge at 0, but change Base Charge to 5.00. This corresponds to the amount of handling charges you want applied to every order.
Leave dollar signs or other currency symbols off when entering price values.
Use 0 for the floor of the first range, 3 as the ceiling, and use 1.50 for the amount of this first quantity range.
This tells the store to use this rate if the number of items in the user's cart is greater or equal to 0 and less than or equal to 3.
Now enter the next range in the quantity-based shipping table. Use 4 for the floor of the first range, 0 as the ceiling, and 0.50 as the amount.
This tells the store to use this rate if the number of items in the user's cart is greater or equal to 4, up to infinity (0 as the ceiling means no upper limit).
Ranges for the Cumulative Quantity Table must not overlap. In other words, make sure the floor for one range is larger than the ceiling for the previous range. Otherwise, the amounts from both ranges will be applied when computing a customer's shipping cost.
As an example of how this works, if a user has 5 items in his or her cart, the store will compute the shipping costs for this method to be 5.00 (from the Base Charge for the method), plus 1.50 for the first item, plus 1.50 for the second item, and plus another 1.50 for the third. At this point the second range will kick in, and the store will add 0.50 for the fourth item and another 0.50 for the fifth. The total shipping cost presented to the customer is 10.50.
Sometimes it's simpler and more convenient to set a static rate for each quantity range, rather than having the costs accumluate for each item as they do in this example. This is done by selecting the regular "Quantity Table" for the Method Type of the shipping method instead of "Cumulative Quantity Table". In that case, the number you enter for the "Amount" of each quantity range is the flat amount that will be charged if the user's order falls within that range (plus the Base Charge), rather than the price per item.
Copyright © 2005 SoftSlate, Inc. All Rights Reserved.