> ## Documentation Index
> Fetch the complete documentation index at: https://hc.saas-manager.biz.nuro.jp/llms.txt
> Use this file to discover all available pages before exploring further.

# AI response language

> How to configure the AI agent's response language and system default language

In AI Helpdesk, administrators can configure the language the AI agent uses to respond. Go to **Settings** > **Admin** > **System settings** to make changes.

<img src="https://mintcdn.com/admina-sbn/P0Z2ZjMpBdMu1zTW/images/ai-helpdesk/ai/language/language.png?fit=max&auto=format&n=P0Z2ZjMpBdMu1zTW&q=85&s=c42227d69e41e3f86609dc230f888eb9" alt="Admin tab — System language screen" width="2880" height="1800" data-path="images/ai-helpdesk/ai/language/language.png" />

## Language setting types

| Setting                       | Description                                         | Who can change |
| ----------------------------- | --------------------------------------------------- | -------------- |
| **System default language**   | The default response language for the entire tenant | Admin          |
| **Personal language setting** | Each employee's preferred language                  | Each employee  |

<Note>
  Personal language settings take precedence over the system default language. If an employee has not set a personal preference, the system default language applies.
</Note>

## How to change your personal language setting

Employees set their own language preference in AI Helpdesk chat with the `!lang` command, not the admin console.

```text theme={null}
!lang ja
```

You can specify `en` (English), `ja` (Japanese), or `system` (follow the system default language). Omit the argument to show your current setting. See [AI Commands](/en/ai-helpdesk/ai/commands) for details.

## How to change the system default language

<Steps>
  <Step title="Open the Admin tab">
    Open **Settings** > **Admin** in the admin console.
  </Step>

  <Step title="Start editing system settings">
    Click the **Edit** button in the **System settings** section.
  </Step>

  <Step title="Select a language">
    Choose a language from the **System language** dropdown. Currently supported languages are **Japanese** and **English**.
  </Step>

  <Step title="Save">
    Click **Save**. Changes apply to new conversations immediately after saving.
  </Step>
</Steps>

## Supported languages

| Language | Identifier |
| -------- | ---------- |
| Japanese | `ja`       |
| English  | `en`       |

<Note>
  Support for additional languages is planned for future releases.
</Note>

## Language setting priority

When the AI determines which language to respond in, the priority is as follows:

1. Employee's personal language setting (if configured)
2. System default language

## Related pages

* [AI Commands](/en/ai-helpdesk/ai/commands) — Details on the `!lang` command
* [Admin settings — Session configuration](/en/ai-helpdesk/admin/session-config) — Manage system-wide settings