Hi Community,
If you edit the seller details profiles that you use with your listings, the seller details information in your listings that are already active will remain unchanged. However, any future listings you post from your saved listings that have that seller details selected will reflect those changes.
If you were to "relist" an item with your old seller details information, the relisted version of that item would still reflect the outdated seller details information. Therefore, you would need to repost your listings from your Saved Listings page instead of using the "relist" option to make sure the changes to your seller details information are applied.
The only way I know of by which you could edit the seller details profile information in your listings that are already active would be to use eBay's "Revise your Item" form. If you click the "Standard" tab on the description editor, you should be able to make the desired changes with your cursor and keyboard. I don't believe this can be done in bulk though.
If you have any additional questions or concerns, please feel free to contact our customer support team using the web form on the following page: http://www.auctiva.com/help/requesthelp.aspx
-Mike