For multiple product orders, all items contained in that order will be shipped at the same time. Therefore, if a product is unavailable or if you participated in a buy-in and purchased RTS (ready to ship items), your entire order will be delayed and all items will be shipped together since you only paid for one order to ship. You can contact us and request that your RTS items be shipped sooner and you will be manually invoiced for any shipping differences that may be incurred.