Unscheduled Visits occur when care providers clock into a session with a Client from their Caseload rather than from a Visit on their Schedule. These types of work sessions are common during on-call scenarios.
To resolve Unscheduled Visits, go to Schedules>Workforce Management>Unscheduled Visits.

From here, you can review your Unscheduled Visits and take appropriate action by clicking either Reject or Add to Schedule.
If you click Add to Schedule, you'll have the option to check the box next to Auto-Approve the New Visit, so that it can be exported to Billing and Payroll where applicable.

After clicking Save, the Visit will be added to all relevant schedules and a Visit Note will be created indicating that the Visit was created from an Unscheduled Visit (as well as whether it was auto-approved).

If you select Reject on the Unscheduled Visit, this work session will not be exported to Billing or Payroll.