Use the following variables to dynamically add tracking information to your SMS messages:
{tracking_number} – the tracking number/s for the order
{tracking_provider} – the shipping provider for the tracking number
{tracking_link} – the tracking link for the order
{shipment_status} – the shipment status for that tracking order in case TrackShip is enabled
{est_delivery_date} – the shipment estimated delivery date for the shipment (if supported by the shipping provider API)