Product owner could be individuals, product teams, departments, or manufacturers, depending on what best suits your needs.
To import a name value for product owners you need to download the import template first. Then add product owners to the list.
The template supports import to the languages you have defined in feed, so when you click on download template you need to select the languages you want to use when updating or creating new "product owners".
If you use individuals for "product owners" the names are the same on all languages available.
Make sure you create new values on all languages so that users on different languages setting than yourself will see the value in their language as well. This is also important if you will be using these in integrations
Blank on a language will result in blank value for that language.
If you just "update", you can update only on the languages that are missing a value for a product owner.
You need to specify a import code when importing product owner.
To see the import codes that are in use on "Product owner", go to "Basic data". Under Product, click on Product owner. Here you will se a list of product owners (you can also export this list if needed).
Blank on import code are manually created Product owner that has not received an import code on creation. These cannot be updated in an Excel import (unless they are given an import code first).