In the Shoptet administration, products might have availabilities defined, such as “On stock”, “On request”, “Sold out” etc. These can be defined on product variant level (endpoint Product detail, items data.variants[].availability and data.variants[].availabilityWhenSoldOut). If they are not specified (the item is null), global eshop default values are used as per settings in the administration. The default values can be newly retrived from endpoint List of product availabilities, section defaultAvailabilities.