Need Coupons to discount the catalog (line price) versus discounting the cart in WooCommerce

We work with Procurement systems like Oracle and Coupa and are attempting to incentivize our customer base through couponing in WooComerce. The challenge is that the procurement systems will not pass the coupon through and ignores the discount when it's in the cart. We need the coupon to have the ability to discount the catalog price so that it effectively changes the price we are charging for an item.