Understanding how scopes affect policy target visibility
Multiple scopes can filter the policy-based management target details pane for a target lists. However, the final scope that a policy uses is always the scope of a task owner.
If the policy task is listed in Common tasks, and another Endpoint Manager user with a different scope looks at the target details pane for the task (let's call this second person a target list "editor"), the target details pane is filtered by the editor's scope. In this case, the editor may not see all the targets the policy will be applied to in the target details pane, because the editor's scope may not allow them to see all targets in the creator's scope.