---
title: Define language-specific properties
slug: cms-saas/docs/define-language-specific-properties
docTags: 
createdAt: 2026-07-30T20:18:08.000Z
---

If you have a website that supports multiple languages, a text element (like a title or description) with **Unique value per language** can have distinct values according to each language. So you could have a title in English, Spanish, or French, defined within the same text element field, but differentiated by the language setting. See [Languages](docId\:Py2PIByC7C-2yg37wQtml).

By setting the **Unique value per language** property, Optimizely Content Management System (CMS) (SaaS) knows to retrieve and display the correct language-specific value depending on one of the following factors:

- the user's language setting.
- the particular language version of the page being accessed.

![](https://api.archbee.com/api/optimize/BrbvVORKJ5iIeSMZye5kI/O_UzDA8k_vnKLDwAJ8SEX_96b5bb2d7dd2231fe6405978f3c1ed70eebcaa1cfe7a69ed04c912b96573a855-image.png)

Properties with unique values per language are editable in activated languages on the website. You can edit only properties that do not have language-specific values in the language on the original page. These properties are deactivated in the edit view with an icon indicating the original language.

When you create a page, you can set the **Sort index** in the original page language if you clear the **Unique value per language** checkbox. But if you create a version of the page in another language, the **Sort index** field is not editable; the sort index is the same for activated languages. To change the **Sort index** for each language, select the **Unique value per language** checkbox.

![](https://api.archbee.com/api/optimize/BrbvVORKJ5iIeSMZye5kI/aDCcsB7SmfRN2nAd0KtfA_651137d8db212548c9045bfb54a38463cd44e4cc1ccc04fe8dafdffbd7fa27ac-image.png)

If you change a property so that it does not have a unique value, existing values are deleted. For example, if the property for the editor area is changed to not have a unique language, text entered in the editor area for all languages on the website is permanently deleted.