The SKU list object and the allowed CRUD operations on the related resource endpoint
SKU lists are used to group more SKUs, either automatically (i.e. through a REGEX) or manually (i.e. by creating and sorting more SKU list items).
SKU lists cannot contain bundles. If a bundle is associated with an SKU list, they are considered matching resources, which is meaningful for the scope of specific promotions and promotion rules application.
SKU uniqueness is not enforced on SKU list. That means an SKU list can contain the same SKU multiple times.