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Author: Olivia Mack

// Add thumbnail column to product admin list add_filter('manage_product_posts_columns', function($columns) { $new = ['cb' => $columns['cb'], 'thumbnail' => 'Image']; return array_merge($new, $columns); }); add_action('manage_product_posts_custom_column', function($column, $post_id) { if ($column === 'thumbnail') { echo get_the_post_thumbnail($post_id, [60, 60]); } }, 10, 2);