Once an item is sold on eBay, JoeLister will update the "FBA ID" column on your "eBay Sales" tab. That means we have submitted the order to Amazon and are waiting for them to ship the item. Once they ship it, we get the tracking number and carrier from them, and populate the "Tracking" tab on the same page.
Amazon usually takes 24 hours (sometimes up to 48 hours) to ship the item and update tracking. If you are seeing longer delays with shipment, and you see an FBA ID for that sale, this is not an issue with JoeLister but with Amazon -- please contact Amazon Seller Support to find out the reason for these slow fulfillment times.