title: Firebase Analytics userID
body: <p>I have an app and would like to do a lot of analyses on the user behaviour. As I understand it, I can link Firebase to BigQuery and export raw data.</p>
  
  <p>What I'm interested in is whether Firebase will provide separate data for each user using the app or just an overall analysis?</p>
  
  <p>In what way can I identify these users? Can I assign each user with a random userID for the purpose of being able to uniquely identify him? Users will have to login into the app but I don't (and can't) use their username as userID.</p>
  
  <p>Any suggestions?</p>
  
  <p>Thanks a lot</p>