During synchronization, changes are reconciled and posted into the replica version. During this reconciliation, conflicts may occur. The synchronization was successful, but conflicts were detected.
Resolve the conflicts on the target replica. While conflicts exist, you will be able to synchronize to get changes, but you will not be able to send changes. See Resolving synchronization conflicts manually for more information on how to resolve these conflicts. See Synchronization and versioning to learn more about how geodatabase replication uses versioning during the synchronization process.