Apart from a bad data recording, typically you should never wish or need to delete an activity within TrainAsONE. However, if you do wish to do so, this can easily be accomplished from your activity list page:
1. Go to your Activities list page and locate the activity you wish to delete.
2. Click the Status field for the activity to delete.
3. In the popup dialog click the 'Delete activity' button. Click OK to confirm.
The activity will be deleted and a rebuild of your plan triggered.