Hi Maria,
Several things:
- If you are working from a campaign and just pulling in filters in the smart list tab, this should automatically pick up any new leads that qualify with those filters... now if it's a batch campaign that you've already run you will need to run it again if you know you have new leads you'd want included.
- If you work from static lists that you upload, you do have the option to select multiple lists in the campaign's smart list area.
Kim