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action is not described

wp_update_nav_menu_item action-hook . WP 3.0.0

Fires after a navigation menu item has been updated.

Usage

add_action( 'wp_update_nav_menu_item', 'action_function_name_2820', 10, 3 );
function action_function_name_2820( $menu_id, $menu_item_db_id, $args ){
	// action...
}
$menu_id(int)
ID of the updated menu.
$menu_item_db_id(int)
ID of the updated menu item.
$args(array)
An array of arguments used to update a menu item.

Where the hook is called

wp_update_nav_menu_item()
wp_update_nav_menu_item
wp-includes/nav-menu.php 560
do_action( 'wp_update_nav_menu_item', $menu_id, $menu_item_db_id, $args );

Where the hook is used (in WP core)

wp-includes/customize/class-wp-customize-nav-menu-item-setting.php 175
add_action( 'wp_update_nav_menu_item', array( $this, 'flush_cached_value' ), 10, 2 );