I have added about 5 serviceappointment records via the Webservices, however, these have now broken the ServiceCalendar, I just get "Invalid Agument".
Having navigated to the Activities via the "Activites" tab, and deleted them (it appears none of the properties had been populated correctly), the ServiceCalendar is still broken with the same error.
Why does the Webservice allow me to create objects that BREAK the installation, and what can I do to fix the instance?
Thanks
G