Last weekend I finished the article about the promotion mechanics and their implementation in hybris 6.x. (The article will be useful for all e-commerce people, not only for the hybris community)
https://hybrismart.com/2017/04/30/promotion-mechanics-and-their-implementation-in-hybris-6-x/
In this article, I overview the common promotion mechanics and their default implementation in SAP hybris. You may be surprised to learn that some things don’t work as expected. I explain the edge cases and typical flaws with the default implementation as well as offer words of advice on how to build it properly.
I hope it will help you to understand the limitations of hybris promotion engine and identify the edge cases.
P.S. If you have any comments and additions, please send them to me and I update the article.
https://hybrismart.com/2017/04/30/promotion-mechanics-and-their-implementation-in-hybris-6-x/
Being in America 