i just recently created a Youtube Video showing how to use CUBA to create an ordermanagement application within round about an hour.
You might want to check it out: https://youtu.be/K8kIrEwnTJ4
All current and upcoming videos for this topic can be found in the corresponding playlist
CUBA platform ordermanagement
I would like to get your feedback on it, if you like it, if you think I can do something better or perhaps you have even topics that I should cover.