Hi,
So you can edit the view "product / quantity" via the menu Display > Views and add code like:
Code:
$user = JFactory::getUser();
$groups = $user->get('groups');
if(!in_array('XX',$groups)) return;
Replace "XX" by the desired group id, in this case the customer group.
In this case all the users not in the customer group will not see prices.
