Auto-Ship items that have the same scheduled shipment date, shipping address, billing address, and payment method will automatically ship together as one order.* If you have more than one Auto-Ship subscription and want them to ship together, simply visit the ‘My Subscriptions’ section of your account and set the next shipment date of both orders (or of individual items within the orders) to be the same. Please also confirm that the orders you want to combine are all being sent to the same shipping address and have the same billing address and payment method.