I am creating a smart list to see our inactive leads for past 6 months and for more than 6 months. So for 6 months it's very clear but what should I put in Date of Activity field for more than 6 months in past?
This is where you'd use the In Past Before operator.
Open email is retained for 25 months according to data retention policy docs.
Wouldn't you just use this for inactives in past 6 months and use 25 months for everyone else?