Question from a developer:
I'm seeing a problem where I testing my game on iPhone/iPad, I'm getting a different PlayFab ID/account, even though I haven't changed devices. Why is that?
Question from a developer:
I'm seeing a problem where I testing my game on iPhone/iPad, I'm getting a different PlayFab ID/account, even though I haven't changed devices. Why is that?
The iOS devices generate a unique ID for the device for your apps the first time one is installed - and removed that ID if all your apps are un-installed. So basically, anytime the number of apps from your developer account on the device is zero, you're going to lose that ID.
The best way to avoid this issue is to use the iTunes Keychain to store the first Device ID you see for the user, though you'll still want to send other device info (OS version, for instance) on login, for your analytics. But for testing purposes (TestFlight, for example, tends to remove the old version of the app, then add the new one, so it can cause this), you could simply create a second "dummy" app that you install to your device, so that it's always present regardless of any un-install/re-install you do for your main app.
Hi Brendan. To clarify, if a user is just updating (did not uninstall the app) it will retain the same ID, correct? Meaning their progress won't be lost on update because it will recognize it as the same device, correct?
That should be the case, The exception would be if the app were uninstalled before the new version was installed. We did see that a long time ago, but I believe Apple have ensured that updates don't work that way since. If they have any regression there however, that could cause your players to get new IDs. The Keychain store would be the way to prevent issues, in any case.
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