# Data hygiene — Keep your data clean — Runner

> Runner proposes duplicate pairs with the reasons they matched, tells the reviewer which kinds of record a merge moves before they confirm, and records every row it moved so the merge can be reversed. Usually bought as Insycle or Dedupely.

Canonical: https://www.runtheworld.ai/product/data-hygiene

**Built into Runner**

- Duplicate pairs, each with the reasons it was flagged
- Where both contacts sat on the same product, the more protective email, call and recording consent is kept
- Each merge records the rows it moved, so undo can put them back

**Worth knowing** Runner brings each likely pair to a person — one reviewed pair at a time, never in bulk on a schedule. A contact undo puts the moved rows back unless one has changed since, and what was combined into the kept contact — consent, and a membership, tag, property or link both held — stays with it. An account undo moves its contacts, opportunities and evidence back as they are now.

Usually bought as Insycle or Dedupely.