1. Select the order that is ready to go and click on the "Batch & Assign" button down below.
2. All the available delivery services will appear.
3. Once you select Shippo, you'll be in the MagicBatch screen, where you can choose between Recommended, Cheapest, and Quickest. The Recommended tab is where you'll find the lowest rates that'll arrive before each order's delivery promise time (if possible).
4. In the MagicBatch screen you can edit the delivery services.
6. You can change the pick-up date too. Note that you may get different rates.
7. You can even change the service level for each carrier.
8. And last but not least, you can always change the package dimensions.