Deduplication happens before any cleaning credit is spent
Merged exports repeat addresses. A CRM dump, three campaign lists, and a webinar file will contain the same person five times. Our email list cleaning service normalises case and whitespace, deduplicates, and only then starts the cleaning work.
That is why the cleaning cost is per unique address rather than per row. A cleaning service charging per row is charging you for its own missing deduplication step.




