Lead Nurturing Smart Lists

Create a list of all contacts that have never been or have not been contacted in the last 90 days.

1. Navigate to Contacts in the menu pane.
2. Click on More Filters. 
3. Type 'last activity' in the search box, which shows 'Search Filter.' You will see the 'Last Activity' filter as one of the options.
4. 
5. Select the last activity filter. Once it is added. Click the 'More Than' button. Type in 90 days.
6. 
7. Click on the blue Apply button at the bottom to add the filter
8. Select "Save as Smart List" to confirm and create the view
9. From the main list of contacts you can see in the "Last Activity" column the exact date.