I see a lot of similar questions regarding custom slots in the Alexa Developer Forums so am summarizing key points here to help new Alexa developers as well as to clarify my own understanding.
I haven’t had this much fun as a developer in over 20 years. Here are some of the reasons I find working on voice applications — and the Alexa platform in particular — a joy:
If your business hasn’t even considered voice-activated services as debuted with Amazon Echo and Google Home devices, this primer is for you.