I use the Inventory API to create a multi-variant auction.
Our auction is in the e-cigarette category, where an Ebay warning is mandatory for youth protection.
When I update the InventoryItems and their auction without the parental warning included, I get an error.
If I then add the warning again, I can no longer update the InventoryItem or the auction. It always throws the error that there is no parental warning.
