How to Clean Up Long Metadata Under Order Items (Keep Only Size/Color)

Since Hippoo Android v2.8.0 (November 2025), we started showing all product/item metadata directly under each line item in the order view. a feature requested by many stores using add-ons, custom fields, gift messages, etc.

We understand that for most users this creates very long paragraphs and that you usually only need to see the variation details (Size, Color, etc.).

Here are the two most common solutions:

Option 1 – Keep only Size, Color, etc. (recommended for most stores) #

Add this snippet to your child theme’s functions.php or via the free Code Snippets plugin:

// Hippoo: Show only variation attributes (Size, Color, etc.) in orders
add_filter('woocommerce_rest_prepare_shop_order_object', function($response, $order, $request){
    $data = $response->get_data();

    if (!empty($data['line_items'])) {
        foreach ($data['line_items'] as $index => $item) {
            if (empty($item['meta_data'])) continue;

            $product = wc_get_product($item['product_id']);

            // Simple products → hide all meta
            if (!$product || !$product->is_type('variable')) {
                $data['line_items'][$index]['meta_data'] = [];
                continue;
            }

            // Keep only real variation attributes
            $allowed = array_keys($product->get_attributes());
            $new_meta = array_filter($item['meta_data'], function($meta) use ($allowed) {
                return in_array($meta['key'], $allowed, true);
            });

            $data['line_items'][$index]['meta_data'] = array_values($new_meta);
        }
    }

    $response->set_data($data);
    return $response;
}, PHP_INT_MAX, 3);

Result: only Size, Color, etc. appear under each item, everything else disappears.

Option 2 – Hide all metadata completely (old clean look) #

add_filter('woocommerce_rest_prepare_shop_order_object', function($r){
    foreach($r->data['line_items'] ?? [] as $k => $i) 
        $r->data['line_items'][$k]['meta_data'] = [];
    return $r;
}, PHP_INT_MAX);

Both snippets only affect the data Hippoo receives, your website, checkout, and customer emails stay exactly the same.