The item cannot be listed or modified···We noticed that you are attempting to sell inventory that is located in a different country. If this was an error, please return to the previous step to modify the item location.··

Error message：The item cannot be listed or modified. The title and/or description may contain improper words, or the listing or seller may be in violation of eBay policy. We noticed that you are attempting to sell inventory that is located in a different country. If this was an error, please return to the previous step to modify the item location. If you are attempting to selling forward deployed inventory such as inventory from an overseas warehouse or drop-shipper, please click here to verify the location of your inventory. Once verification is complete, you will be able to sell forward deployed inventory on eBay.

Reason：

eBay determines that the seller's previous product is not sold in America. But this listing states that the product location is in America, so eBay requires the seller to verify that there is a warehouse or delivery point in America.