In Customer Profiles, you'll have access to all your saved searches. Each Customer Profile tab includes some information about the number of prospects saved in each one. Next to each customer profile you can see how many of the leads have been contacted, excluded, and which leads still need to be contacted
Additionally, if you click into the customer profile you will be able to see the same stats as we do in the above photo along with the specific leads that have or need to be contacted.
In case you want to contact leads that have already been exported or contacted you need to enter that customer profile, click on "start sequence", and the following page will have an "advanced settings" dropdown. While in the dropdown you will have the ability to un-check the "remove leads or companies that are in the exclusion list" option.