If you have an event that is no longer taking place, there are two ways to update your calendar:
Cancel an Event: Unless your event was created by mistake, this is usually the best option for events that are no longer meeting. When you use this option, the event remains on the calendar (both online and in subscriptions) but is labeled as "Canceled" so that members are aware. Events can be canceled from Groups Admin or Church Center.
Delete an Event: This is permanent and removes all traces of the event from the calendar. If attendance was taken and visitors were listed, that information will be permanently erased as well. Events must be deleted from Groups Admin.
On the group calendar, select the event to cancel or delete it.
In the event, click Cancel event.
To notify members that the event has been canceled, check the box, edit the message as needed, and then click Cancel Event.
The event will remain on the group calendar with a line through it, and the attendance column will show Canceled.
If you change your mind, you can edit the event and click Un-cancel at the bottom of the page.
To edit an event in Church Center app, log into Church Center, and select an event in the group's Events tab.
Tap the options menu in the upper right corner, and tap Cancel event.
Choose to notify members and add a message, and then tap Cancel.