The appointment scheduler in the work order posting wizard needs some refinement for use in exit scheduling oil changes. Since it is picking up all interval services, there may be times another service is coming due before the next oil change. The system defaults to the next interval due without allowing the user to select the desired service. If the behavior could be changed where clicking on the "Oil & Filter Service" line changed the proposed scheduled date and time to match the service requested, this would be much better.