About synchronisation conflicts
A synchronisation conflict occurs when you change the same email or organiser data item on your BlackBerry smartphone and in the email application on your computer.
If you reconcile your email using wireless email reconciliation, on your smartphone, you can set whether the email on your smartphone or the email on your computer takes precedence when an email reconciliation conflict occurs.
If you synchronise your organiser data using wireless data synchronisation, the organiser data on your computer takes precedence over the organiser data on your smartphone when a data synchronisation conflict occurs.
Research In Motion recommends that you regularly create and save a back-up file on your computer, especially before you update any software. Maintaining a current back-up file on your computer might allow you to recover smartphone data if your smartphone is lost, stolen or corrupted by an unforeseen issue.