When restoring iPhone backup, asked for *previous* iCloud accounts?
&nbsp;&nbsp;1.&nbsp;See which apps are still linked to my no longer used Apple IDs


Whilst there's no 'list' of these apps, you should be able to notice apps which haven't been restored to the device, as these will be apps purchased with those Apple IDs. If you're watching the device being restored, you may notice such apps move straight from Waiting… to being deleted—this is a sign of an app which is not permitted to be installed.


  &nbsp;&nbsp;2.&nbsp;Move those app purchases over to my me Apple ID


There is no automatic process for this. You'll need to find apps which aren't installed and you remember being installed (or you see not being installed per the previous paragraph) and reinstall them, whilst being signed in to your newer Apple ID.


  &nbsp;&nbsp;3.&nbsp;Remove those older Apple IDs from future backups


As these apps have not been installed, future backups won't be aware of these apps ever existing and consequently you won't be prompted for the Apple IDs again.