Some of the fields for a contact you created on your phone won't be synchronized and may be lost on the phone if you sync it with iSync 1.5 or earlier.
On your phone, if you create a contact, these contact fields are not synced:
As a result, data in these fields may be removed from the phone after syncing.
To avoid this situation, create and edit contacts in Address Book instead of on the phone.
Important: Information about products not manufactured by Apple is provided for information purposes only, and does not constitute Apple's recommendation or endorsement. Please contact the vendor for additional information.