Shopify flow tracking number variable issue

[Shahzaib3]

hey guys I was using a Shopify flow workflow to send the order details to the google sheets when ever the order was placed but I can't figure out the variable that can help me get the tracking number I have used variable like {{fulfillments.tracking_numbers}},{{order.fulfillments.tracking_numbers}},{{fulfillment.tracking_number}} but each one of them generates an error .