Any idea how to do this in promotions from admin panel?
If a customer buys product X and product Y, customer gets a discount of 50% for product Z.
X, Y and Z are specific products.
Magento Stack Exchange is a question and answer site for users of the Magento e-Commerce platform. It only takes a minute to sign up.Sign up to join this community
There is an extension of amasty for this purpose.
Link to magento connect : https://www.magentocommerce.com/magento-connect/special-promotions-by-amasty.html