Oracle Field Service (OFS)
The activity History displays a synchronization error on Start or En Route activity actions.
You can Start or En Route an activity if it is the next Pending activity on the route. When the activity is Started or set to En Route directly from the non-scheduled pool, the system first moves the activity to the current resource's day and then it sets the status to Start or En Route. The system auto-resolves the synchronization and displays "synchronization error" in the activity History. The behavior is expected.