Appointments troubleshooting If you have problems with appointments, use this troubleshooting information. Calendar appointments show incorrect colorsezyVet shows an already approved on billed invoice error when you cancel an appointmentezyVet date boxes show NaN-NaN-NaNezyVet shows a resource access error when you change an appointment statusCalendar appointments have missing iconsA planning guide does not correctly fill the applicable calendar space correctlyezyVet shows a contact ownership error when you try to discharge a patientezyVet shows a cannot be before/equal the start error when you save an appointmentWhen you hover over calendar appointments, ezyVet does not show pop-up windowsezyVet shows An appointment needs a start date! when you try to save an appointmentParent topic: AppointmentsRelated conceptsIntegrations for appointments and telemedicineRelated informationGetting startedPlanning guidesSend appointment messages, forms, and remindersVirtual appointmentsFind and show appointment informationAppointments and travel invoicingBoardingKiosk: Easy client check-insE-bookingAppointment status configurationAppointment type configurationCalendar configurationGeneral configuration of appointments