<?phpnamespace App\EventListener;use Pimcore\Event\Model\DataObjectEvent;use Pimcore\Model\DataObject\Product;class ObjectListener{ public function onPreAdd(DataObjectEvent $event): void { $object = $event->getObject(); if ($object instanceof Product) { $object->setSku($object->getKey()); } } public function onPreUpdate(DataObjectEvent $event): void { $object = $event->getObject(); if ($object instanceof Product) { $object->setKey($object->getSku()); } }}