SkieCan I edit or delete a geofence after it has been created?
Yes. You can change a geofence's name, position and size at any time, and you can delete it when it is no longer needed. Edits apply to every group the geofence is attached to, so check where it is used before changing it. Deleting removes the zone, and groups that used it stop being watched against it.
A geofence is not set in stone. Campuses add a building, a hostel moves its curfew boundary, a depot relocates. Open the geofence from the list, change the name or reshape the zone, and save.
The important thing to remember is that a geofence is shared. One zone can be attached to more than one group. If you move the boundary of Main campus, every group using it is judged against the new boundary from then on. Before you edit, look at which groups use the geofence so you know who is affected.
Deleting is a bigger step. Once a geofence is deleted, no group is checked against it any more. Devices carry on working normally and their rules do not change, but you will stop getting leave-the-zone alerts for that place. If you only want a pause, detach the geofence from the group instead of deleting it, so you can reattach it later without redrawing the boundary.
Both actions are changes to your configuration, and changes are recorded in the audit log, so you can later see who altered a zone and when. If someone deletes a zone by mistake, the nightly backups described in nightly backups can help you recover it.
Practical tip: rename rather than delete when the purpose changes. A geofence called Old gate is easier to find and clean up later if you give it a name that tells people what to do with it.