Hi dingding0220,
Two things to keep in mind:
1. The name of the program must be unique with plain English as the name: "Kitchen" not: "prog_kitchen_001"
2. If you change the name of your program(s) or set Vocal names for devices/scenes you'll need to tell Alexa to "refresh devices".
See our website and Alexa guide here:
http://mobilinc.com/features/echo/Wes