From the back office you can update the event: type, name, dates, venue, texts, contacts and images. Those are the same details you complete when you create it.
You can also cancel a date. One of the event states is cancelled.
How to cancel a single date in a series without cancelling the rest, and how to activate a cancelled date again: [CONFIRMAR].
The states that exist are: draft, in review, published, upcoming or past, hidden and cancelled. The detail of each one is still in an index guide that is not published yet.
Review at publication is covered in Review of international events.
