...
Select either an Individual, the page, or all results. The system will create new Prospect records for each selected match. If a Prospect already exists with the same email, it will enhance the existing record instead.
...
Duplicates
When adding a new Prospect via DataSpring, the system will check for duplicates using the email address.
...
If you click continue, the system will enhance the existing record with data from DataSpring. Otherwise you can click the Prospect’s name to view the existing record.
Domain Lists and Named Accounts
...