Hi Alistair,
Are you looking to track who is making the edits to the feature service or using editor tracking specifically for permissions?
If you are looking to have a group of users update a specific feature service, try following on of these 2 workflows to accomplish this:
Workflow 1: Group with Access and Update Capabilities
1. Publish a Feature Service
2. Have an administrator create a group with the item Update capability enabled. This is outlined in the following geonet conversation: Why can't group members contribute items to the group?
3. Invite the editors to your group.
4. Share the desired service with the group.
5. Have users open the feature service from the items page with full editing control to have full editing capabilities.
Workflow 2: Create a role with Edit Features with full control privileges
1. Create a custom role for users who will be updating the service
2. When assigning privleges to the role, ensure that under general privleges>editing that the following privilege is checked on:
- Edit features with full control on editable hosted feature layers.
3. Assign the new role to the users who will be updating the data
4. Have the users who will be updating the service navigate to the service item page and open the item with full control in the map viewer
Cheers,
-Kelly