title: "Potential Loss of Keychain Access"? Can I ignore it? Would exising app users who paid for the app have issues?
body: <p>A previous developer created and uploaded our app with our dev team. They then transferred it to our client's account and released it. However it kept our Team ID. When uploading to the App store, I get the following:</p>
  
  <blockquote>
    <p>"Potential Loss of Keychain Access - The previous version of software
    has an application-identifier value of ['XXXXXX.XXXXXXX'] and the new
    version of software being submitted has an application-identifier of
    ['YYYYYY.XXXXXXX']. This will result in a loss of keychain access."</p>
  </blockquote>
  
  <p>I can accept losing Keychain Access as I understand that there is little that can be done here and it <em>may</em> not affect this app.</p>
  
  <p>However, my question is, could current users be affected? There are no passwords in the app or any user details stored, it is mostly an informative app. I assume it won't stop them updating the app or block them from using their current build? These users have paid for the app, so if they stop getting access all of a sudden, they might be upset!</p>
  
  <p>i.e. I'm not sure about the following technologies from Apple:</p>
  
  <blockquote>
    <p>Important: The only apps that can ignore this warning without
    consequences are those that do not use technologies that rely on the
    <strong>App ID prefix, like keychain access, Handoff, and UIPasteboard
    sharing</strong>.</p>
  </blockquote>