ECM Everywhere Client Count

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The Appworks/ECM Everywhere wipe function only works if the user attempts to log-in with that account(from what I have observed) which means that when users update their tablets from ,for example iOS 8.1 to iOS 8.4.1, that 8.1 client is still going to be listed…I assume this listing impacts the number of clients I’m licensed to have of ECM Everywhere. Can I delete the old version from the database itself?