hho
Usual no, legal yes.
Both parties to a First Tier Tribunal, the claimant and the DWP, have the right to appeal to the Upper Tier Tribunal on an Error of Law in the making of the Decision, not because they disagree with that Decision.
The processes in Scotland are slightly different from England and Wales but achieve the same thing.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems