We would like to request support for Português (Portugal) - pt-PT in Confluence. According to the documentation, pt-PT is not currently supported in Confluece cloud.

*Portuguese (Portugal), pt-PT, is not supported by Confluence. If a user’s locale is pt-PT, in Confluence it will fallback to Portuguese (Brazil), pt-BR, if configured. If pt-BR is not configured, the fallback language will be based on the app’s fallback configurations.