Cart Price Rule promotion

[katarzyna_lazarska]

I want to set up a promotion: 

When adding one specified product (SKU: 123) the customer can get 1 product from specified category (NEW) for -30%.

Therefore: 

1 product with SKU 123 in the cart -> 1 product from category NEW -30% discount
2 products with SKU 123 in the cart -> 1 product from category NEW -30% discount (2 in total)
3 products with SKU 123 in the cart -> 1 product from category NEW -30% discount (3 in total)

and so on...

Please advise me if setting up such promotion is possible with native magento 2 commerce version. 

[rojarani]

Yes, you can configure the 30% discount on the single product in Magento2. For this we've to configure the cart rules action. It will results as your expectation.

E.g

If the product price is 10. In Cart 1 (1 product ) - final price 7

If the product price is 10. In Cart 2 (2 products ) - final price 14

If the product price is 10. In Cart 3 (3 products ) - final price 21

Below snippet might be helpful to configure your cart rule.

Rule Configuration