In IntelliSync we have "unfilled contacts" from the mobile device that could easy be moved and maintained to another Address book. It now looks if everything is collected in DataSync to the "Frequent Contacts" making it more difficult to manage.
GroupWise on the PC's also uses this frequent book for auto completion and growing fast.
We sometimes just clear it due to many duplications.
The "frequent book" is also much larger than the MobileDevice book.

We have to option to select which "book" to Sync but would like to make sure that newly contacts from the Mobile is backup on to Server.

Please share the best practices as I am seeing duplicates on the PC and Mobile.
Also seeing duplications on Calendar (separate issue)
Thank you in advance.