**What** - Remove overserialization withing transaction and rely more on internal service or protected method instead which does not serialize and work with Infered entity type - Slightly rework loop complexity Overall, this gives a good spare of resources and time spent for serialization
Promotion Module
The PromotionModule is Medusa’s promotion engine. It offers functionality to discount carts through coupon codes with a given set of rules governing when and how the code should be applied.