WonderLister Desktop – eBay listing management software supports adding your own fields (aka custom fields). WonderLister lets you create your own custom fields and attach them to listings, listing templates and/or sales. For custom fields, you can enter data that is relevant to your business. This data is not visible to your potential buyers, it is private to you.

*** This feature is unique to WonderLister Desktop and is not available on eBay itself ***