woocommerce_coupon_options │ action-hook │ WC 1.0

Usage

add_action( 'woocommerce_coupon_options', 'wp_kama_woocommerce_coupon_options_action', 10, 2 );

/**
 * Function for `woocommerce_coupon_options` action-hook.
 * 
 * @param  $coupon_id 
 * @param  $coupon    
 *
 * @return void
 */
function wp_kama_woocommerce_coupon_options_action( $coupon_id, $coupon ){

	// action...
}

$coupon_id

-

$coupon

-

Where the hook is called

do_action( 'woocommerce_coupon_options', $coupon->get_id(), $coupon );

Where the hook is used in WooCommerce