wsafp_coupon_exclude_product_categories_filter

// Exclude specific product categories

// functions.php
add_filter('wsafp_coupon_exclude_product_categories_filter','exclude_cat_id_for_sponsor_a_friend');
function exclude_cat_id_for_sponsor_a_friend(){
       $cat_ids = array( 0 => 'CATID', 1 => 'CATID' );
       return $cat_ids;
}