I am using Feeds to automatically import an XML feed of classified ads from another Drupal site (running the same modules).
I've used XPath to map all my fields (I only have the taxonomy term/category, image, title, body, and published date). However, I can't map the expiration date field (it's not an option within my import settings). It'd be nice if I could somehow add the expiration date field and map that as well.
(As I typed this, I began wondering if I could add the status field and set the published status on each import. It might achieve a similar result.)

Comments
Comment #1
fgmIn Drupal/Entity API parlance, the expiration date is not a "field" (instance), but a "property"/"extra field", like the "node id", "published status", "title" and a number of others.
Feeds could discover it because Classified Ads declares it as an "extra field", called "expire_fs" for forms and "expires" for display. So I think you should obtain more feedback from the Feeds contributors/maintainer(s), so retagging.
Also, note that since 04/2012 you should have been using 7.x-3.0 of Classified Ads, no longer 7.x-3.0-rc2, which has known issues, fixed in the final release.
Comment #2
bluegeek9 commentedUnfortunately, Drupal 7 is End of Life and no longer supported. We strongly encourage you to upgrade to a supported version of Drupal.