> ## Documentation Index
> Fetch the complete documentation index at: https://docs.slm.m1amdocs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Set the Preferred Language

Subscribe allows you to offer templates in multiple languages. For example, you can define billing notification templates in English, German, French, and Chinese. The notification template used will be based on the customer’s preferred language setting in the `Account` object.

To define the preferred language, use the W3C IANA Language Subtag Registry standard. (Subscribe supports the ISO-639.2 standard, but recommends the IANA Language Subtag Registry, which is more recent and complete than the ISO-639.2.)

If no active template in the customer’s preferred language exists for a billing event, Subscribe sends the English version. If the English version does not exist, Subscribe sends no notifications.

**Parent topic:**[Customer Notifications](../topics/ProgGuide_CustomerNotifications)


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