# Page Not Found

The URL `pages/9iVAcPUIKTWFgrUbt9ZZ` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [Sự kiện người dùng gửi tin nhắn](https://developers-zns.goby.vn/phu-luc/su-kien-nguoi-dung-gui-tin-nhan.md)
- [Sự kiện người dùng quan tâm/bỏ quan tâm OA](https://developers-zns.goby.vn/phu-luc/su-kien-nguoi-dung-quan-tam-bo-quan-tam-oa.md)
- [Sự kiện người dùng nhận thông báo ZNS](https://developers-zns.goby.vn/phu-luc/su-kien-nguoi-dung-nhan-thong-bao-zns.md)
- [Lấy thông tin quota ZNS](https://developers-zns.goby.vn/truy-xuat-thong-tin/lay-thong-tin-quota-zns.md)
- [Lấy danh sách người quan tâm của OA](https://developers-zns.goby.vn/zalo-follower-api/lay-danh-sach-nguoi-quan-tam-cua-oa.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the documentation index with the `ask` parameter:

```
GET https://developers-zns.goby.vn/phu-luc/su-kien-nguoi-dung-gui-tin-nhan.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.

### Option 2 — Browse the documentation index

Full index: https://developers-zns.goby.vn/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://developers-zns.goby.vn/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/phu-luc/su-kien-nguoi-dung-gui-tin-nhan.md`).

You may also use `Accept: text/markdown` header for content negotiation.