woocommerce_removed_coupon action-hook . WC 1.0

Usage

add_action( 'woocommerce_removed_coupon', 'action_function_name_2102' );
function action_function_name_2102( $coupon_code ){
	// action...
}

$coupon_code

-

Where the hook is called

do_action( 'woocommerce_removed_coupon', $coupon_code );

Where in WP core the hook is used WooCommerce

add_action( 'woocommerce_removed_coupon', array( $this, 'set_session' ) );