Add a “take 6 and pay 5” promotion that allows you to combine any product in the catalog, without being limited to specific products or families.

When the customer adds 6 products to the order, Handy must automatically identify the one with the lowest price and apply a 100% discount to it. That is, the customer wears all 6 products, but pays only 5.

The promotion must be able to be applied again for each group of 6 products; for example, if the customer buys 12 products, the corresponding 2 lower-priced items must be discounted.

Currently, promotions require defining activating products or families and a fixed reward product, so it is not possible to configure this mechanic.