Showing SKU column in woocommerce orders page

I’m trying to show SKU column for each order in WooCommerce > Orders

I did add the following code

// Add the SKU column to the orders page

add_filter( 'manage_edit-shop_order_columns', 'add_sku_column' );

function add_sku_column( $columns ) {

    $columns['sku'] = __( 'SKU', 'custom-order-page' );

    return $columns;

}



add_action( 'manage_shop_order_posts_custom_column' , 'display_sku_column_value', 10, 2 );

function display_sku_column_value( $column, $post_id ) {

    if ( $column === 'sku' ) {

        $order = wc_get_order( $post_id );

        $items = $order->get_items();

        foreach ( $items as $item ) {

            $product = $item->get_product();

            echo $product->get_sku();

        }

    }

}

but it still not showing ?!

On the other hand when I show Orders notes on the same page it did work

add_filter('manage_edit-shop_order_columns', 'custom_order_column_header');
function custom_order_column_header($columns)
{
    $columns['order_notes'] = __('Orderz Notes', 'custom-order-page');
    return $columns;
}

// Populate custom column with order notes
add_action('manage_shop_order_posts_custom_column', 'custom_order_column_content', 10, 2);
function custom_order_column_content($column, $post_id)
{
    if ($column == 'order_notes') {
        $order = wc_get_order($post_id);
        if ($order) {
            echo $order->get_customer_note();
        }
    }
}