If you have multiple orders you wish to combine into a single shipment, use the Combine Shipments option.
Combine Shipments allows you to combine items from separate orders into a single shipment while maintaining the integrity of each order. This is so ShipStation can accurately communicate shipment statuses and tracking numbers back to your selling channels for each order.
To ship all items from separate orders together:
Select the orders you wish to ship together in the Orders grid.
Click Other Action and choose Combine Shipments.
If the orders have different Ship To addresses, you'll be prompted to choose which address to ship to.
ShipStation will create a combined shipment in the Planned status that includes the items from both orders.
Configure the shipping options and create a label just like you would for any other shipment.
Any packing slips or pick lists you print for the combo shipment will include the item information from both orders.
If you want to ship only some of the items in each order together, first use the Split into Shipments process to split the items you will not include in the combined shipment into their own shipment. You can then use the above steps to combine the remaining items into a single shipment.
ShipStation will notify the marketplace for each individual order separately, but the customer notification emails will be combined into a single email that lists all the products in the combined shipment.
ShipStation will use the default email template assigned to the store, even if all of the individual orders were set to use a different template.
If using the [Order Number] field replacement for Label Messages, Packing Slips, or Email Templates, ShipStation will use the Order Number for the first order that was created.