Defines the multi-variation listing feature. If the field is present, the corresponding feature applies to the site. The field is returned as an empty element (e.g., a boolean value is not returned).

Multi-variation listings contain items that are logically the same product, but that vary in their manufacturing details or packaging. For example, a particular brand and style of shirt could be available in different sizes and colors, such as "large blue" and "medium black" variations.