Why do we receive a different UUID on each app install?

[jed_ashford]

On our Android app, each time the app data is cleared or the app is removed and installed again, we get a new UUID. Is this expected behavior? This doesn't happen with the iOS SDK.

[jason_koo · Accepted solution]

Hi Jed, Yes, the UUID value should change whenever the app is deleted and reinstalled. If you are not seeing this behavior with the iOS Library, that is unusual. First check to see that you are not setting a custom UUID through code. If that's the case, please let us know which version of the iOS Library you are using or copy & paste the NSLog output you are seeing.

[jed_ashford]

Thank you for the clarification. On iOS it looks like there was some confusion as we tested again on iOS and it does change on app removal/reinstallation.