To make the Product Sales Report and other custom inventory related reports accurate and usable we should have a COG (Wholesale Price) attached to a bundled product.
I would think this could be easily done by adding together the wholesale price of the items in the bundle at the time of order shipment.
UPDATE: ShippingEasy retired the Inventory Management subscription in June of 2020. Our Product Catalog stores a comprehensive list of the products you sell and allows you to add your product information to leverage product and SKU details to ship more efficiently. Learn more about our Product Catalog.
Existing Inventory Management subscribers will still have the ability to use the features specific to Inventory Management, however, we are no longer supporting new subscribers.