I need to know which Artworks are missing their offer

The CMS allows you to quickly see which artworks have or not a sale offer:

1) Click the folders browser on the top left corner
2) Under “Search” you will find the options “Having offers” and “Having no offers”
3) Click the option you are interested in and the artwork corresponding to that criteria will appear.

From there you can also edit the artworks or even unpublish them.