How to automate tickets in ServiceDesk via ZC?

The ManageEngine Service Desk Plus promotion states this:

"Automate creation, updating, and closure of tickets in ServiceDesk Plus On-Demand every time a record is submitted or updated in your custom app."

So how is this done? I've looked all through the ZC documentation and can't find any way to get ZC app form data to post to a new ticket in ServiceDesk.

Any help is appreciated.

Steve