Hello:

Has anyone completed Trailhead's Service Cloud Basics Module yet?

I need help in figuring out the following step in the challenge:

The escalation rule should escalate cases not closed after 30 minutes, based on when the case is created, and should use business hours specified on the case.

I am unable to figure out what Rule Criteria I should use (how should I set it up) so that escalate rule will fire if a case is not closed after 30 minutes.

Thanks,
Munira