Hi Gabriele,
Thank you for using Syncfusion products.
Regarding SfSchedule query:
Based on the provided information, we have checked and we are unable to reproduce the mentioned issue with ScheduleAppointments not updating in Schedule Xamarin Forms (Android) from our side. We have prepared simple sample based on this scenario, please find the below sample.
In the sample, we have added ScheduleAppointment in the OnAppearing also added another appointment dynamically by the button click event.
If the given solution doesn’t meet your requirement, could you please revert to us by modifying the provided sample based on your scenario with the replication procedure along with platform details, it will be helpful for us to check on it and provide you the better solution.
Regarding SfCalendar query:
We have tested the reported issue in our latest version of Essential Studio and we were unable to reproduce the reported issue from our side and we have attached the sample and video which we have tested the reported issue. Please find the sample and video from the below link.
So, could you please check the reported issue in our latest version of Essential studio using attached sample. If you still facing reported issue, could you please provide modified sample which replicates the reported issue and which Android API version issue gets occur. It will help us to provide appropriate solution on this.
Regards,
Subburaj Pandian V.