Getting started - Multi-language
If your store is available in multiple language, then this feature can be activated - This will allow you to configure the Templates for Email, SMS and Web-push in multiple languages.
Once an additional language has been selected and published - a drop-down will show in the top right of the 'Customize' pages in the Back in Stock dashboard;
Clicking this will open a drop-down that will show any published languages on the store;
This will show a new version of the page, where you can input text and settings for the alternate language version.
We have more information on multi-language here; Multi-language