# Deduplicate

Select this option when you want to remove duplicates from your source data. You will be able to define the field(s) that you want Dataimporter to look at, when considering whether records are duplicates or not:

<figure><img src="/files/33doWeR8tJRKFK4qOydJ" alt=""><figcaption></figcaption></figure>

By selecting multiple fields, Dataimporter will check both columns, and **only when both columns match, will records be considered duplicates**.

Dataimporter will always perform an exact match when looking at removing duplicates e.g. 'Acme Account' and 'acme account' will not be considered duplicates.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://help.dataimporter.io/formatting/deduplicate.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.