Yes, the Item Number displayed in ShippingEasy is linked directly to your eBay listing.
On the ORDERS page, click on a specific Item Number.
By clicking on the Item Number, you'll be taken to the eBay listing page for the order, where you'll be able to review your order item in more detail.
NOTE: only one Item Number can be displayed per eBay order. If an order contains multiple items from multiple different eBay listings then no Item Number will be displayed in ShippingEasy or linked back to eBay.