When checking on the list of articles available, Unbabel will look for articles that have their language matching the default language set in Guide Admin at that moment. Suppose half of your Help Center articles have a US English Version, and the other half a French version: each half will show up for translation as you switch the default language from US English to French. That language will be considered the source language for any translation.
In order to request translations in different languages:
1 - Head to your Help Center Guide Admin Settings and select Language Settings. You will be able to see all the languages that you have available as well as your Default Language (usually English US).
2 - Select the new language that you want to translate and set it as default.
3 - The selected language will now show up as Default and the articles written in that language will be available for translation on our integration tool.
A language will only show up as available to translate to if it matches the source language to form a supported language pair.
Please bear in mind that Unbabel will read any updates when the tool is launched, so be sure to only log in to https://kb.unbabel.com after you finish and save all changes in Zendesk.