woocommerce_new_customer │ action-hook │ WC 1.0

Usage

add_action( 'woocommerce_new_customer', 'wp_kama_woocommerce_new_customer_action', 10, 2 );

/**
 * Function for `woocommerce_new_customer` action-hook.
 * 
 * @param  $customer_id 
 * @param  $customer    
 *
 * @return void
 */
function wp_kama_woocommerce_new_customer_action( $customer_id, $customer ){

	// action...
}

$customer_id

-

$customer

-

Where the hook is called

do_action( 'woocommerce_new_customer', $customer->get_id(), $customer );

Where the hook is used in WooCommerce

add_action( 'woocommerce_new_customer', array( __CLASS__, 'update_registered_customer' ) );