---
search:
  tags:
    - account
    - POST
seo:
  description: >-
    Updates the user's preferred language for the application interface.…
    Reference for the POST /account/language endpoint in the Leadtime Public API
    API.
sidebar:
  badge: POST
  label: Update preferred language
title: Update preferred language
type: openapi-operation
---
Updates the user's preferred language for the application interface. Supported languages: `en` (English) or `de` (German). This affects the language of UI elements, notifications, and other system messages.

<Operation source="api-reference" id="accountcontroller-updatelanguage" />