---
sourceDocument: Yokohama Conversational Interfaces
sourceDocumentLink: https://www.servicenow.com/docs/r/yokohama/conversational-interfaces

 Release :

    - yokohama

ft:locale :

    - en-US

ft:publication_title :

    - Yokohama Conversational Interfaces

ft:clusterId :

    - convint

bundleId :

    - convint

workflow :

    - Platform


---

# Specify a fallback language for locale-specific languages and NLU prediction

# Specify a fallback language for locale-specific languages and NLU prediction {#ariaid-title1}

* Release version: Yokohama
* 
* Updated January 30, 2025
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

Provide language locale support by specifying a fallback language for Virtual Agent to use for topics, keywords, and NLU prediction. For example,
the ServiceNow® platform doesn't support Mexican Spanish (mx-es), but it
does support Spanish (es), which you can designate as the fallback language for a better
user experience.

## Before you begin

Note:  
The fallback language plugin must be installed on the instance. Once installed, the language is available in the Languages \[sys_language\] table. If Now Assist in Virtual Agent is on and you work with LLM-enabled conversations, you can only establish a fallback language in the Languages \[sys_language\] table rather than use the following steps.

Role required: virtual_agent_admin or admin

## Procedure

1. Navigate to AllConversational InterfacesSettings.
2. Select Virtual Agent.
3. On the Multi language support card, slide the Language Detection toggle switch to enable it.
4. Select View All.
5. Select the name of a language to open the record.
6. Select Edit Record at the top of the page.
7. In the Fallback field, select the Search icon (![Search icon.]()) and select an available language.  
8. Select Update.

## Result

Custom locales appear in the Languages \[sys_language\] table, along with their
fallback language. The language code (ID) indicates a language that Virtual Agent can detect. In the following example, three French
locales use French as the fallback language. Only French Canadian remains
unconfigured.

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