add_action( 'woocommerce_before_shop_loop_item_title', function() { global $product;if ( !$product->is_in_stock() ) { echo '<span class="onsale soldout">Sold Out</span>'; } });Woocoommerce Loop 템플릿에 직접 삽입 할수도 있다. WooCommerce Sold Out Products 플러그인