Open **Input → Dedup**.

## Product duplicates

Two canon products with the same **GTIN** or **MPN**. Choose:

- **Merge** — combine into one product;
- **Reject** — they aren't duplicates.

Merges are recorded in the audit log.

## Check queue

A supplier row that **looks like an existing product**, but the system isn't sure. Choose:

- **Merge** — attach to the existing product;
- **New product** — create a new one;
- **Reject**.

## Staging log

The last 3 runs per supplier: **new**, **matches**, **for checking**, **rejected**.