In the event a department is no longer needed, follow the instructions below to prevent other staff members in your office from scheduling appointments for that department; there is no way to permanently delete a department.
Select Appointments > Configuration… > Departments
Use the Show All button to view all departments. Or use the Search Bar to further drill down your search.
Select the Department from the list.
Place a check the Make this department inactive checkbox.
Resources associated to inactive departments are reassigned to their previous status when it's associated department is set to inactive.