You might encounter an error referencing an invalid postal code when trying to list a new product.
- First try to resolve the issue by checking that city, state, and zip code are filled in the address field for the warehouse used for eBay on your Account Settings.
- We also found that it may be related to the shipping policy, if you are using shipping_default vs shipping_FBA on eBay.
- We suggest changing the shipping policy to shipping_FBA in Zentail and directly on eBay.