> For the complete documentation index, see [llms.txt](https://help.dotb.vn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.dotb.vn/tuyen-sinh-ban-hang/target/canh-bao-trung-du-lieu.md).

# Cảnh báo trùng dữ liệu

> Khi nhập dữ liệu vào bị trùng thông tin về **số điện thoại và họ tên**, hệ thống sẽ cảnh báo người dùng bị trùng dữ liệu, bạn có thể bỏ qua thì nhấn **Cancel** hoặc nhập lại thông tin thì nhấn **Go Back**.

![](/files/-LukFK399qEY8AabACDS)

> *Video hướng dẫn chức năng cảnh báo trùng dữ liệu*

{% embed url="<https://www.youtube.com/watch?t=68s&v=2yJSOmXi7CY>" %}


---

# Agent Instructions
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## 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, and the optional `goal` query parameter:

```
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```

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