# 기존 데이터 일치

일반적으로, 기존 데이터는 고유 식별자를 기반으로 매칭되며 시스템은 최신 정보로 확장/덮어쓰게 됩니다.


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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://support.iafcertsearch.org/api-developer-guide/api-ko/data-handling/matching-existing-data.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.