Which cancellation procedure does Jessica not need to follow when cancelling her event?

Jessica does not need to be at the venue at the time the event had been scheduled when cancelling her event. This is because being present at the venue during the originally scheduled time does not contribute to the proper cancellation process. Instead, effective communication with participants and the venue is key to ensuring that everyone is informed about the cancellation.

Sending an email to all participants serves to alert them of the change and allows them to adjust their plans accordingly. Notifying the venue is also crucial for logistical reasons, as it ensures that the venue is aware of the cancellation and can manage their scheduling. Changing the event time and notifying attendees is a viable option if she intends to reschedule rather than cancel the event altogether. Therefore, physically attending the venue does not add value to the cancellation process and is unnecessary.