Add to list

Adds the value of a field to an account list, optionally with an expiration.

Configuration	Content
List	list existing in the account
Source: Value	text or integer field whose value will be added
Setting: Expires in	30m, 12h, 1d; minimum 5m, maximum 2 years; blank = permanent

It lets a rule incorporate what it has already observed. A condition detects the behavior and writes to the list, and the following events check that list with an ordinary condition:

Event 1, condition:  "email_velocity" in %bot.triggered_cells
         action:     Add to list → $user_email to @blocked_emails, expires in 1d

Event 2, condition:  $user_email in @blocked_emails
         action:     Set field → blocked = "true"

With an expiration, recovery becomes an explicit policy: the entry leaves the list when it expires, instead of depending on the window of the analysis that originated it.

Points to consider:

• A repeat does not duplicate: adding a value already on the list only renews its expiration.
• Invalid values are ignored: a blank value, or one outside the format the list accepts, is not added and does not interrupt processing.
• Removal is periodic: expired entries are removed by sweeps every few minutes, so an entry may keep counting a little past its expiration; that is why the minimum expiration is 5 minutes.
• Full lists stop growing: once the item limit is reached, new values stop being added, but existing ones keep being renewed. See limits and parameters.
• The simulator does not write to the list: because it changes data outside the event, this action is skipped during a simulation.