{How to }Make your copilot multilingual in Microsoft Copilot Studio

Hello Everyone,

Today I am going to show how to enable Microsoft Copilot Studio Multilingual.

Let's get started.

To make your Microsoft Copilot (created in Copilot Studio) multilingual, you can add secondary languages to your agent and localize its content.

1. Add Secondary Languages:

When you create an agent, it has one primary language. You can add more by following these steps in Microsoft Copilot Studio.

Open Settings: Go to the Settings page for your agent.
Select Languages: Click on the Languages tab.
Add Language: Select Add language, choose the languages you want from the list, and click add.
Publish: Your agent must be published for the changes to take effect.

2. Manage Localization & Translations

Content in your agent, like topic messages, does not translate automatically unless you use generative orchestration. For other content:

Download Localisation File: In the Languages Settings, select Upload for a secondary language and download the current strings in JSON or ResX format.
Translate strings: Open the file and replace the primary language text with your translated versions.
Upload Translations: Upload the modified file back to the agent's settings.
Manual Authoring: Some elements, like Starter Prompts, must be manually authored in each secondary language directly in the canvas.

3. Language Switching Logic

You can configure how the agent decides which language to use:

Browser-Based Detection: By default, the agent tries to match the language specified in the user's browser or client. If no match is found, it falls back to the primary language.
Dynamic Language Switching: You can create a topic that uses the User.Language system variable to switch languages mid-conversation based on user input or AI-detected intent.
Generative Orchestration: If needed, your agent can dynamically switch languages turn by turn to follow the flow of the conversation.

These guides detail how to configure Microsoft Copilot for Multilingual capabilities, covering language addition, localization and language-switching logic.

That's it for today.

I hope this helps.

Malla Reddy Gurram aka @UK365GUY

Published on: March 18, 2026

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{How to }Make your copilot multilingual in Microsoft Copilot Studio

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