To localize correspondence into a language that is unavailable in the Pega language pack, you can
create the Translation rule manually and include the rule in the application ruleset. A Translation rule
is a rule that defines how to translate text from one language to another. You can create a Translation
rule manually by using the Create menu in Dev Studio and selecting Rule > Integration-Resources >
Translation. You can then specify the source and target languages, the text to be translated, and the
translated text. You can also use a decision table or a connector to provide the translated text. You
must include the Translation rule in the application ruleset so that it can be used by the application.
Reference: https://community.pega.com/knowledgebase/articles/integration/86/translation-rules
