Walmart Inc. says it is prepared to overcome widespread COVID-related challenges this holiday season thanks to its long history dealing with similar problems and some new tools that are keeping its systems running smoothly.

Walmart WMT reported third-quarter earnings and revenue that beat Street estimates on Tuesday, and raised its full-year profit guidance. And while supply chain bottlenecks have delayed the movement of goods around the world, Walmart says its U.S. inventory is up 11.5% ahead of the holidays.

“Fighting…