As reported by this thread over a year ago,
 

The blog post and the product page for the Smartsheet Sparkcard integration is very deceptive about the actual implemented features. The blog post shows descriptions, statuses, and tagging in the second screenshot. The current integration product page here
https://lucid.app/marketplace#/newlisting/5d20313d-7d03-4e02-91b6-b0bab59025ca

Shows due dates and status on the Lucidcards from smartsheet. Which are also not possible!

If this functionality isn’t available, please update your documentation to reflect that. Otherwise people (like myself and the original thread poster) will get frustrated in trying to make your product do something that it cannot.