One of the reasons for choosing Vendio is the ability to have several complimentary items (non-ebay acctions) offered during checkout for the "won eBay item".
I have specified 3 inventory items on 3 different auction items. I copied myself on the checkout emails and and the 3 inventory items are not there -- what has to be done to get them to show up?
You can cross promote items in Vendio Checkout however they have to be Vendio Store items. Items you have in your inventory will not show up if they aren't active Vendio Store items. You would need to sign up for a Vendio Store and convert those items into store fixed price items (easy to do since Vendio Store items are managed via inventory).
Please let us know if you have any other questions.