This Unsigned32, in seconds (0..2,592,000, up to 30 days), sets the evaluation period for the separate Alert TCA feature, subject to the same rules as the Adjustment Interval per its DESCRIPTION: it must divide evenly by the sample interval and be at least as long as it. Alert TCA and Adjustment TCA are configured as two independent timing tracks on the same profile, so an operator can, for example, run a tight Alert check for fast notification while leaving a longer Adjustment Interval for the slower basis-drift evaluation, without one setting constraining the other beyond the shared sample-interval divisibility rule. For example, setting this to 900 seconds (15 minutes) while the Adjustment Interval on the same profile is set to 3600 seconds means Alert TCA gets evaluated four times as often as Adjustment TCA on that same set of PM instances.