The productCatalogActor REST framework uses the fractionalQuantityAllowed actor-chain to identify if fractional quantities are permitted or used. When passing in quantities using URL parameters in REST, the quantity must be in the correct format for the SKU or product. If the SKU allows fractional quantities, the quantity must be entered as sku123=14.0, where as a SKU that does not use fractional quantities must be entered as sku123=14. For additional information on using the productCatalogActor, refer to the Web Services Guide.
