- Number of days of the occurrence of one of the most frequent events (e.g., subscription, joining a group, etc.).
- the latest activity the recipient has generated
- the last data updatelatest profile update form has been submitted (for the current list or for any list)
- based on a Profile field (eg, date of registration, birthday, etc ...)
- based on the anagraphic data (true / false)
- based on activities (true / false)