get_id() ) { // Only new orders $order->set_billing_country( 'US' ); } }); /** * Visibly pre-select US in the Add New Order admin dropdown * Purely visual convenience, safe for open invoices */ add_action( 'admin_footer', function() { $screen = get_current_screen(); if ( $screen && 'shop_order' === $screen->id && empty( $_GET['post'] ) ) { ?>