Exercise: Using DCO to capture feedback
I'm trying to complete the Delivering a Pega Project course and I'm currently stuck on the exercise to use DCO to capture feedback. Following the Exercise steps I arrive to the Case Types field, which is empty, and when I try create the "Assistance request" case type, an duplicate entry error displays. If I create a different case type, I am prompted to create a workflow, which was never discussed. The "save and run" feature, is also not accessible as a result. Can you help me figure out where I've goofed up?
Thank you,
lubo