> ## Documentation Index
> Fetch the complete documentation index at: https://help.dingtalk.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> This document introduces the concept of media files, the scope of open API capabilities for media files, and the tutorial for integrating media file APIs.

This topic describes media files, the API capabilities available for media files, and how to integrate the media file APIs.

## What is a media file

### Media file storage location

The storage space used by this feature is a dedicated storage area that DingTalk provides to organizations. It does not belong to an organization's Drive space. Files uploaded through this feature's APIs do not consume the organization's Drive space.

### Storage validity

There is no time limit on how long files are stored by this feature. As long as the DingTalk organization is not dissolved, the `media_id` returned when uploading a file remains valid for ongoing use.

## Open capabilities overview

Media files provide a comprehensive set of open API capabilities. Developers can use these APIs to integrate media files with their organization's business systems.

| API                                                         | Description                                              | API version |
| ----------------------------------------------------------- | -------------------------------------------------------- | ----------- |
| [Upload a media file](/open/development/upload-media-files) | Upload images, voice media resources, and general files. | Legacy      |

## Tutorials

DingTalk provides sample integration flows for the media file APIs. See the table below:

| **Tutorial**                                                                                          | **Feature description**                             | **Audience**            | **Demo download**                                                                                                                                                                    |
| ----------------------------------------------------------------------------------------------------- | --------------------------------------------------- | ----------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| [Upload a media file and send a work notification](/open/development/procedure-for-using-media-files) | Upload a media file and send message notifications. | All DingTalk developers | [file-demo.zip](https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20250729/qrbdtr/file-demo.zip?spm=ding_open_doc.document.0.0.18684a70zYmQDC\&file=file-demo.zip) |