The Autotrader Connect system manages all technical data on the advert. We'll display the advert based on the derivative selected and the data sent over from your DMS provider.
If it's wrong, it's best to edit the advert in your DMS system rather than in Portal. Updating it in Portal could mean the changes are overwritten when the advert next updates via Autotrader Connect.
Good to know: If you use Dragon2000, it's okay to update the advert in Portal. We'll send them any changes you make there to keep your DMS system up to date.