Walmart Inc. has begun telling online shoppers that some products in its warehouses are “out of stock” after the retailer changed its e-commerce systems to avoid orders deemed too expensive to ship.

When ConnectOne Bancorp was looking to upgrade its customer interaction systems, its chief executive faced an issue that can permeate any company: resistance to change among employees.

American factories are running short of parts.

Logistics sector hiring kept up a brisk pace in July as delivery firms, trucking companies and warehouse operators added 15,600 jobs ahead of the peak shipping season.

A truck driver for the Schwebel Baking Co. rolled out of Cleveland toward Rochester, N.Y., on a recent day with a trailer full of freshly-made sandwich rolls and buns. Less than an hour into the run, sensors tied to his tractor-trailer started sending a stream of urgent data messages that led the big rig to turn around and head back to the bakery.

Cargo streamed into U.S. seaports at a rapid rate in June, as businesses pulled in goods in an apparent rush to stock up ahead of new tit-for-tat tariffs between the U.S. and China.

Boeing Co. and Airbus, swamped with orders for new jets, are struggling to deliver them all on time — in some cases angering customers and delaying payments.