Adding Custom Language Codes to Sitecore
You can also add custom language codes into Sitecore by editing the Website/bin/CTAddedLanguageCodes.xml file. However you must also contact Connector Support and your translation provider to ensure the custom languages are set up appropriately in the Provider as well as in the Translation Management systems.
<CTLanguageCodes> <LanguageCode> <Name>Danish</Name> <Code>da</Code> </LanguageCode> </CTLanguageCodes>
Note: If your company sends content to your translation provider via the FTP Provider on the translation side, it is not necessary to contact Connector Support, because the FTP Provider automatically creates folders based on the job name and language pairs, even for a custom language pair. However, you must inform your translation provider about the standard language code into which to translate the content.