??????????

shalom. i read previous posts and comments about automation.
how can i program fixed values to DELIVARY_TIME = 7 days and SHIPMENT_COST = 19NIS to all products ?

add_action( ‘wc_zap_mirror_xml_node’, function( &$node, $product ) {
$node->PRODUCT_NAME = $product->get_name();
$node->DETAILS = $product->get_description();
$node->CATALOG_NUMBER = $product->get_id();
$node->PRICE = $product->get_price();
$note->DELIVERY_TIME = 7;
$note->SHIPMENT_COST = 19;

}, 10, 2 );

this does NOT work for me, how can i make this work?