Mode shifting involves switching from expensive modes of transport (like air) to more economical ones (like rail or ocean) when time permits. Businesses that review transport timelines can often shift low-priority goods to slower, cost-saving modes. A TMS helps assess the trade-offs in time, cost, and reliability. Mode optimization also reduces emissions and fuel use. By building flexibility into delivery schedules, companies can capitalize on lower-cost transport modes and avoid unnecessary expedited fees.