question

We are writing an Clover App that will require the user to choose from the discounts in the native Clover discounts app OR a list of discounts that are NOT stored in the Clover system (long story). Is there a broadcast sent when they user clicks the discount link for an item OR the Add Order Discount link from the Register app? I want to capture when they click one of the links and ask if they want to add a Clover Discount or the outside discount.