Hi Guilherme,
Thank you for contacting Syncfusion support.
Based on the provided information, your requirement of setting the custom properties to the ScheduleAppointment properties can be achieved using ScheduleAppointmentMapping in Schedule Xamarin Forms. Since Schedule DataSource is a IEnumerable, its allow you to perform CRUD operation with AppointmentMapping in it. We have prepared simple sample for the same, please find the below sample.
In the sample, we have custom properties of Meeting as customAppointment and added Meeting properties in the ScheduleViewModel, by using AppointmentMapping mapped the Custom properties and set in the DataSource in the sample page.
You can refer our online user guide documentation for the same by the below link,
If the given solution doesn’t meet your requirement, could you please revert to us with more information about your query, we will check on it and provide you the better solution.
Regards,
Subburaj Pandian V.