The temperature excursion alert hits your screen at 4:47am. A cold storage zone has been reading 48°F for the last 22 minutes and your threshold is 41°F. What you do in the next quarter-hour is going to determine whether you're writing off $30,000 in product or filing a deviation report and moving on. First thing: confirm it's real. Sensor malfunctions happen, and a single probe reading isn't a verdict. Check your secondary sensor or grab a calibrated handheld and physicall