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Question

evenueCat Billing customer emails are in English although checkout is in French

  • October 1, 2026
  • 1 reply
  • 9 views

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Hello, 

Flutter web, purchases_flutter 9.16.1, RevenueCat Billing. The browser language is French (navigator.language) and the checkout page is displayed in French, but all customer emails (subscription confirmation and the "Manage your subscription" portal email) are in English. Docs say lifecycle email bodies use the locale selected for the purchase. Is the portal email localized at all? Is there a dashboard setting for email language?

1 reply

alejandra-wetsch
RevenueCat Staff
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Hey ​@aquasquale, 

Thank you for reaching out!

Email localization to the users’ browser locale is supported. However, the SDK version you’re using doesn’t support it, you will need to upgrade your SDK to version 10.0.0 or higher for it to work. Email localization will occur automatically after the upgrade, without the need to enable anything on the Dashboard.

The email localization will start working for new purchases after the upgrade. Since we didn’t capture the user’s browser locale for purchases made before the SDK upgrade, we are unable to use it when sending subscription emails.

If you decide to go ahead with the upgrade, I recommend upgrading to the latest version (10.14.0), released today, to take advantage of the new features and recent improvements.

Let us know if you have any questions!