If you have items scheduled to post, and an item sells before it is posted, will it post? If your item has been moved to your Orders page and is no longer in stock (quantity = 0), either through claim link, or having been marked as "Sold Outside of POP", that item will no longer be posted with the queue.  An (!) message will appear next to the item in your inventory under "Out Of Stock".  Hover over the item to confirm that it reads "Failed Posting to Facebook. Item is out of stock, not posting."