If you've been approved to list items on Amazon with Seller Fulfilled Prime, you will need to set up at least one Amazon Shipping Template that has Seller Fulfilled Prime enabled.
After setting up your Shipping Template(s) in Amazon you will need to assign SKUs to the templates through Fillz. Click here to find out how.
Prime orders contain the word Prime in the Shipping Method field, in red. The Shipping Method field is displayed on the Orders->Browse page of your Fillz account, the shipping workflow, packing slips, and pick lists to ensure these orders stand out.