With the multilingual campaign feature you no longer need to create different email campaigns for each language, as you can add as many language options to the same template as needed. The survey is sent to the respondent in the related language that is obtained from metadata.
Follow these steps to set up your multilingual campaign:
Create your survey. As you are adding different language options to the Email template we recommend that you add the same language options to the survey itself.
When you are done with your survey move forward to launch your survey from the upper right corner, and then choose Email campaign as the touchpoint.
In the next step you will start creating the actual email content, and also add the survey languages you wish to add to your campaign. Click on the edit- icon next to the default language and then from the dropdown- menu choose the languages you want to add.
After choosing the languages go ahead and add the content to each language option by clicking on the according flag.
After you have added the content you can save your template for later use by clicking the "Save template" button at the upper right side of the page. In a multilingual campaign, each language template needs to be saved separately. By doing this you can easily access the template by clicking "Load A Template".
In order to get value from the multilingual campaigns and for the multilingual feature to work accordingly, you need to add 'sLanguage' as a column to the contact list, and use language codes based on these values: https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes
You can read more about adding metadata to your email campaign in this article's section: "3. Adding metadata via contact information for SMS and Email lists".
More general information about setting up email campaigns can also be found in this article.