What is the difference between "Sales Deal & Promotions" and regular condition record discount?

Hello Guys,

My question is, What is the quality betwixt "Sales Deal & Promotions" and regular information grounds for discount?

As I recognize Sales Deals are being tracked by information records too. We tin simply make a discount by instauration information grounds for peculiar product/product line. So wherefore bash we request to make a Sales Promotion&Deal alternatively of conscionable creating a discount from VK11?

What is the ratio of this?