how to give discount to product 1 if customer buy product 2

hello every body
I want to encourage customer to buy Product 2 .
Product 1 is a best seller product and its expensive too.
so i want to give them 10% discount to product 1 if they buy product 2
what should i do ? my Nop version is 4.10.
can you help me step by step?

Hi,
simply install and use "HAS ONE PRODUCT" DISCOUNT REQUIREMENT RULE plugin.

(https://www.nopcommerce.com/p/2980/has-one-product-discount-requirement-rule-nopcommerce-team.aspx).

BTW this is a Nop default plugin.

thanks for your response.
I have already installed it .
but it dosn't work as i wish.

i created a discount and set this property :

Discount type : assigned to products
Use percentage : True
Discount percentage :10
Discount limitation : Unlimited
Discount requirement type : Requirement Customer has one of these products in the cart
and i selected product 2
Applied To Products : i selected Product 1
and Saved all of them


in the public store i added product 1 and product 2 in my shopping cart but there is no discount in the shopping cart!!!

It seems that you have set everything right.
I have seen for several times that a discount did not work, deleting and create a new one will solve the problem.

hello every body
i have my problem yet . is there some one to help me more ?
this plug in dose not work at all.

I discovered the problem.

the problem was in the setting which set :

cache Product Price=True;

i set it to false and my problem solved;
if you are trying to discount by product in basket you shouldn't cache the price