# OAuth welcome-mail translations

**URL:** <https://community.auth0.com/t/oauth-welcome-mail-translations/194585>\
**Category:** Get Help\
**Tags:** email-verification, user-management\
**Created:** [November 17, 2025, 1:14pm UTC](https://community.auth0.com/t/oauth-welcome-mail-translations/194585 "2025-11-17T13:14:39Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![gerald.czifra](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/gerald.czifra/32/75301_2.png) [@gerald.czifra](https://community.auth0.com/u/gerald.czifra)\
**Post date:** [November 18, 2025, 12:23am UTC](https://community.auth0.com/t/oauth-welcome-mail-translations/194585/3 "2025-11-18T00:23:06Z")

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Hi @piotr.pietras

Welcome to the Auth0 Community!

Reading through your use-case, I would say that you should use the `ui_locales` variable in order to determine the user’s language and change the Welcome Email according to is. I highly recommend reading through our documentation on [Universal Login Internationalization](https://auth0.com/docs/customize/internationalization-and-localization/universal-login-internationalization) in order to learn more; you can pass the language code from `ui_locales` when calling the Auth0 SDK to log the user in.

Based on the language of your users, you will also need to enable them in your Tenant’s Settings page → Supported Languages to ensure it’s configured fully.

Allow me to share more resources that can help with this matter:

- [Internationalization of login screen issue](https://community.auth0.com/t/internationalization-of-login-screen-issue/56078/16)
- [Customize Welcome Email Flow](https://support.auth0.com/center/s/article/Customize-Welcome-Email)
- [Localize email verification message](https://community.auth0.com/t/localize-email-verification-message/56510)

Hope this helped!  
Gerald

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