I agree with Eric and other users – why NOT use the unique identifier historically used by Endnote? The temp record still defaults to use that identifier, when you unformat citations to their temporary format, which many of us do routinely when we share with non-endnote users and this is essential if a collegue is is going to use a different processor (like open-office or papers) which essentially corrupts word fields including endnote. So you are making it impossible for us users to maintain the synced library and reformatting documents on various computers. The fields are huge, albeit hidden, making large documents even larger, so I tend to keep them in the temporary form. I have not used the sync or share facilty as a consequence. I stick with my tried and true work flow and use our network drive to share the library between computers.