I sent a box to a customer via UPS Ground, but the shipment now needs to arrive sooner. Can I upgrade to overnight service?
You can't switch the service level once something has been shipped, but you're certainly not out of solutions. Request UPS Delivery Intercept® Service and send your customers their goods using a faster service such as UPS Next Day Air®. The intercepted package will come back to you, and, as long as you resend an identical shipment the same day, your customer's goods will arrive the next day. Get directions on how to use UPS Delivery Intercept.