Knowledgebase: FirstClass
Contact changes must include change to phone or address field to sync
Posted by - NA - on 29 June 2009 11:47 AM
Contact changes made on the device will not synchronize to the FirstClass server unless a change to the phone or address field is made as well. 

If a change is made to the notes field, for example, but the phone or address fields are not edited, the change does not synchronize to the server.  In that same senario, however, if a change to the address field is included, both changes synchronize.