Why does the Ebay form suddenly start requiring a zip code? I've never entered one before.
Hello RHS -
This is information that eBay provided in the Summer Seller Update located here.
eBay is requiring zip codes as of 7/31/18. This information is required to assist buyers in having a better idea of when an item will reach them based on the shipping distance. If you have other questions regarding this change, please feel free to contact eBay directly.