The must recalculate alert displays when a bucket detects a change in period field parameters in the target bucket or a change in behavior field parameters associated to the target bucket.
For example, if the logging bucket is configured for a period of 12 months and later changed to 6 months that bucket must recalculate in order to rearrange the transactions recorded in 12 month segments into 6 month segments.
The same logic applies to changes in behavior parameters.
For example, if working opportunities were set to log if greater than 4 hours and later changed to log all opportunities, the bucket associated to that behavior must recalculate to retrieve all transactions which now include working opportunities less than 4 hours.