A type of product that is composed of two or more core products. Thus, it is a pack of multiple core products which are sold together for a single price. The items contained within a bundle are core products (or product variations) with their own SKUs which are stocked and sold individually. When these individual products are bundled together, the bundle is assigned a unique SKU. Note that a bundle is non-stock tracked and only provides a theoretical quantity based on the availability of the core items within it.