AutoDS is transmitting this error from eBay.
If you're using a shipping policy of one of the carriers integrated with eBay like UPS, USPS, FedEx etc it requires a specific zip code which you cannot provide as a dropshipper since your items do not have a known physical location.
If this is indeed the case, we suggest you create a new shipping policy on eBay selecting a general option without a carrier name.
Please replace your shipping method on your eBay business policies page to one of the following general ones to prevent this error:
Once you do that, try uploading again choosing the right and new shipping policy and the upload should run smoothly.
If you don't already have a shipping policy, go into your eBay account and create one in the business policies section.
If you have further questions that were not answered in this article, please do not hesitate and turn to us at the support chat - we will be more than happy to assist you.