Hi, 

I want to access to a users list stored in Data Types. Is it possible to do it in a realtime script? 

Thank you! :) 

Are you wanting to use documents for some action in a RT script?

Try looking at the "Get Player(s)" and "RTSession Logging" section of : https://docs.gamesparks.com/tutorials/real-time-services/creating-and-using-real-time-scripts.html