Category Limited Discount Coupon Discounting Entire Order

So I have setup a 10% off coupon for products in certain categories. The thing is if the user also adds a product to the cart outside of these categories, they are being discounted also?

If you use the categories IN condition and product discount bonus, only products from the selected categories will be discounted

Ah OK, but then you have to select all products that the product discount applies to?

Ah OK, but then you have to select all products that the product discount applies to?

No, there is no need to do it. You can check it on demo:

http://demo.cs-cart.com/admin.php?dispatch=promotions.update&promotion_id=14

Disable the "Use available period" setting (if enabled) and check products in the storefront

http://demo.cs-cart.com/movies-and-tv/movies-dvd/

The above is a catalog promotion, not a cart promotion based on a discount code?

I want to offer a code that only discounts certain products not the entire cart total?

The cart promotions also have the "Discount on products" and "Discount on all products in categories". Please check

Ah got it thanks, you have to specify the products or category then in the bonus section not the condition