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When a person is uploaded to Slate as part of the Purchased List process, the name if of the last list is associated with the person. This name is used to target the population for marketing purposes. If the same person is loaded more than once, the list name will be updated to the most recent value. In many cases, names are loaded multiple times through separate uploads, so the counts will always represent the number of unique people with the specific purchased list name.
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The underlying details for the Leads List Breakdown table can be downloaded using the Export Data function in Power BI. If you want the Slate ID to lookup the application, be sure to select the Underlying Data option in the export.
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