Package presets are used to simplify ordering by eliminating the need for price ids when submitting orders.
Orders submitted without prices or a preset id defined will use the “DEFAULT” preset for the package id. The default package presets include the base options required for a package configuration.
Orders submitted with a preset id defined will use the prices included in the package preset. Prices submitted on an order with a preset id will replace the prices included in the package preset for that prices category. If the package preset has a fixed configuration flag (fixedConfigurationFlag) set then the prices included in the preset configuration cannot be replaced by prices submitted on the order. The only exception to the fixed configuration flag would be if a price submitted on the order is an account-restricted price for the same product item.