Hi Winston,
Thank you for contacting Syncfusion support.
We have analyzed the required query regards “Schedule does not support editing and deleting of Recurrence appointment’s occurrences” and we regret that our UG document not updated regarding this. Currently schedule has support of “Recurrence Exception dates” you can create exception appointments and add this to exception dates. We will update the UG by removing the mentioned line, in our upcoming release. Kindly find more details about “Recurrence Exception” feature by following our UG documentation below.
We hope that this helps. Please let us know, if you have any query on this.
Regards,
Subburaj Pandian V