You Prismic content repository provides a simple workflow for your translators. We use a set of different tags to inform translators which documents need to be translated.
The master language that was defined at the creation of your repository is used as the base for all other translations.
Once a document is created in the master language, it appears on the other language(s) with the tag "To Translate."
This clearly indicates to your translator which documents need to be translated.
If you create a new document within a release, the translations for the other languages will appear in the same release with the "To Translate" tag.
Copy content to another language
To help make translating content from one language/locale to another, you can use the "Copy to another locale" button to either copy all the content or the document structure to another language.
You can read more about this here.