A sidecart allows paizo.com subscribers to place items that have been ordered on hold to ship with a future subscription shipment. 

During order checkout, subscribers may be given the shipping option to combine physical items  being ordered with the earliest possible subscription shipment after the items becomes available for shipping. 

If this option is chosen during check out and the order is submitted, items will be placed into the sidecart. If the items are in stock and ready for shipping, they will be added to the next subscription shipment generated for the account. 

If any sidecarted items are on preorder, backorder, or are special order items not immediately available in our warehouse, those items will remain in the sidecart until they are ready to be shipped, and will be added to the next subscription shipment generated for the account. 

The sidecart can be viewed by going to the My Account page and viewing the sidecart box on the lower right side—you may have to scroll down a bit to see it.

If you decide you don't want to wait until the next subscription shipment to receive your sidecart items, or if you need to cancel items from your sidecart, let Paizo's customer service know and we will assist you as soon as possible.