EDD Recurring Payments & Discounts

functions.php

<?php
function modify_edd_get_cart_content_details_item_discount_amount( $discount, $item ) {
	// We are only worried about SI at this point.
	if ( $item['id'] == 49 ) {
		// Don't apply a discount since it should come off the signupfee.
		return 0; 
	}
	return $discount;
}
add_filter( 'edd_get_cart_content_details_item_discount_amount', 'modify_edd_get_cart_content_details_item_discount_amount', 10, 2 );