---
title: li-external-id
description: "An input field to save an external id of another system."
---
## Supported Features

| Feature | Supported |
| ------- | :-------: |
| Document | ✔ |
| Media | ✔ |
| Include | ✗ |
| Document Creation Flow | ✗ |
| Push Message | ✗ |
| Usage Log | ✗ |
| Table Dashboard | ✗ |
| Display Filter | ✗ |
| Search Indexing | ✔ |
| System Metadata | ✗ |
| Planning System | ✗ |
| Webhook Conditions | ✔ |

## Description

A `li-external-id` metadata field can be used to save an external id of another system. For example if you want to have an article reference to your original system. At the moment `li-external-id` by default renders a text area in the UI. If you want to hide it add the config object with `hideFromForm: true`


## Default UI

Text input

## Storage Format

```js
<String>
```

## Content Type Config

```js
{
  handle: 'myContentType',
  // ...
  metadata: [
    {
      handle: 'myHandle'
      type: 'li-external-id',
      config: {
        hideFromForm: true,     // default false
        index: true             // optional, default: false. Added in release-2023-07
      }
    }
    // ...
  ]
}
```