A user of multiple client devices (clients) makes application configuration changes on the clients from time to time. The configuration changes are stored in a local event log on each client, as well as in a synchronization server. When one of the clients connects to the synchronization server, for example when the user logs into the synchronization server while using a respective client, the configuration information in the server and client is synchronized. Conflicts, if any, in the configuration changes for a respective application are resolved in accordance with a conflict resolution procedure or conflict resolution rules associated with that application.