Php 在 WooCommerce 订阅续订订单中设置送货方式

你没有用正确的方法做这件事，你需要使用WC Subscriptions filter hooks.

try 以下(code is commented)个选项:

add_filter( 'wcs_new_order_created', 'add_shipping_items_to_renewal_orders', 10, 3 );
function add_shipping_items_to_renewal_orders( $order, $subscription, $type ) {
    // Targeting renewal orders only
    if ( $type === 'renewal_order' ) {
        // Get the parent order (initial order)
        $parent_order = $subscription->get_related_orders('all', 'parent');
        $parent_order = reset($parent_order);

        // Set the array for tax calculations
        $calculate_tax_for = array(
            'country'   => $parent_order->get_shipping_country(),
            'state'     => $parent_order->get_shipping_state(),
            'postcode'  => $parent_order->get_shipping_postcode(),
            'city'      => $parent_order->get_shipping_city(),
        );

        // Loop through parent order "shipping" items
        foreach( $parent_order->get_items('shipping') as $parent_item ) {
            $item  = new WC_Order_Item_Shipping(); // create a new empty order item "shipping"
            $item->set_method_title( $parent_item->get_method_title() ); // set the existing Shipping method title
            $item->set_method_id( $parent_item->get_method_id() ); // set an existing Shipping method rate ID
            $item->set_total( $parent_item->get_total() );  // set an existing Shipping method total
            $item->calculate_taxes( $calculate_tax_for );  // Calculate taxes for the item

            $order->add_item( $item ); // Add the shipping item to the renewal order
        }
        $order->calculate_totals(); // recalculate totals and save
    }
    return $order;
}

应该能行得通.

相关:Add update or remove WooCommerce shipping order items