Edit or cancel your activity
What you can change after posting, and what cancelling does.
Open your activity and choose Edit. Sport, route, distance or time, effort, schedule, location, details and the bring list stay editable until the activity starts.
Cancel activity sits at the bottom of the edit screen. Cancelling removes participants, posts a note in the group chat, closes that chat and notifies everyone who joined or was invited. The activity stays visible with a Cancelled badge.