> ## 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.

# Retrieve User Identity Information from Public Forms

> This article compares the capabilities of different YiDA editions, with a focus on how the Dedicated edition supports retrieving basic user information through authorization on publicly published forms. It also covers external user scenarios, procedures, and the authorization page.

| **Feature**                                                                   | **Free plan** | **Basic edition** | **Professional edition** | **Dedicated edition** |
| ----------------------------------------------------------------------------- | ------------- | ----------------- | ------------------------ | --------------------- |
| Retrieve basic user information via authorization on publicly published forms | Not supported | Not supported     | Not supported            | Supported             |

If you have subscribed to YiDA Dedicated, public pages also support **third-party account authorization sign-in**. When visitors open a YiDA public page for visitor registration from apps such as DingTalk, they are prompted to grant authorization for parts of their identity information, which strengthens internal and external collaboration within the organization.

**External users** are not members of the DingTalk organization that owns the app, but they can take part in business workflows through the app's public pages. This enables digital interaction between the organization and its customers, partners, and members of social organizations.

## Use Cases

In visitor scenarios, when external users are **not members of the current DingTalk organization**, they scan a QR code on a mobile device to grant authorization. This helps the organization achieve the following:

* Obtain verified identity information (a more reliable real-name identity), which resolves issues such as invalid submissions, duplicate submissions, and poor information quality.
* Build a visitor information base (External contacts). Once the Open\_userId is obtained, subsequent digital collaboration with the Submitter becomes easier. Examples include after-sales Message notifications, service pushes, visitor notifications, and ticket Feedback.
* Improve submission efficiency and experience (build a silent login personal center). Quickly retrieve the user's Name and Profile Photo. Combined with associated forms and data linkage, the visitor information base helps identify external customers more efficiently across repeated submissions.

## Procedure

<Steps>
  <Step title="Step 1">
    Sign in to the [YiDA workbench](https://www.yidaapps.com/workPlatform).
  </Step>

  <Step title="Step 2">
    Click **My apps**, then select and open the target app to enter its details page.
  </Step>

  <Step title="Step 3">
    Select the page you want to publish separately, then click <Icon icon="ellipsis" /> > **Publish page**.
  </Step>

  <Step title="Step 4">
    Select **Public release**, turn on **Public access** for the page, and set the **Access URL**.
  </Step>

  <Step title="Step 5">
    Select **Account authorization sign-in** and turn it **On**.
  </Step>
</Steps>

## Authorization Page

* With silent login, users see the authorization prompt when they access the public page.

* In scenarios such as visitor databases and team-building event registration, you can collect business data with a verified identity, including the third-party sign-in Type, the user's Name and Profile Photo, and the OpenID from the corresponding open platform.

* While the app developer is responsible for safeguarding business Data Security, they can use DingTalk's open platform to enable follow-up digital collaboration, such as business service reminders and order Feedback.

<Note>
  - External partners: These external users do not participate in app development. They only use the app's runtime features to submit information and receive business Feedback notifications.
  - Internal enterprises: Combined with the logic customization of YiDA custom pages, you can build cross-platform, multi-device web apps by leveraging the authorized account ID.
</Note>