Automatic checks run every 30 minutes, always on the current day's data. After an alert fires, it enters a 6-hour cooldown before it can fire again, so your bell doesn't fill up with repeated warnings about the same situation. Each alert's card shows a Last trigger field so you can keep track. To check right away, use the Check button at the top of the Alerts page, which runs the check immediately. This button has a usage limit (about 5 checks every 5 minutes), so if a limit warning appears, wait a few minutes and try again.