Smart List showing duplicate email records that I can't find in the People tab

Hi everyone,

I’m trying to identify duplicate records in our Marketo database using a Smart List with the “Email Address is duplicate” filter.

The Smart List is showing 6 records, but when I go to the People tab and search for the email addresses of those records, I’m unable to find another person record with the same email address.

Has anyone experienced this before?

I’m trying to understand:

- Why would the “Email Address is duplicate” filter return records when I cannot find the corresponding duplicate records in the People tab?

- Could this be related to deleted/merged records, workspaces/person partitions, indexing, or Smart List data refresh?

- Is there a reliable way to identify the actual duplicate records that Marketo is detecting before we proceed with a database cleanup?

Any guidance on how to troubleshoot this would be greatly appreciated.

Thanks!