title: Why Firebase needs App Team Id and what is used for?
body: <p>Firebase Analytics allows my config to also include a App Team ID in my GoogleService-Info.plist. </p>
  
  <p>I haven't provided one when I created my project, and the app seems to work fine.</p>
  
  <p>Why I need a Team ID? and most importantly what its used for?</p>
  
  <p><a href="https://support.google.com/firebase/answer/7000104?hl=en" rel="nofollow">https://support.google.com/firebase/answer/7000104?hl=en</a>
  Add an App Store ID or Team ID</p>