I want to have a minimum quantity plugin for different user groups.
So when I have Default-Group and Retail-Group. Users from Default-Group can order 1 piece, but users from Retail-Group have to order 5 pieces from the same product, or more.
I tried "Minimum/maximum number of products in order" (http://www.webdesigner-profi.de/joomla-webdesign/shop/addons/minimummaximum-number-of-products-in-order.html) and "Minimum/maximum number of products for usergroup" (http://www.webdesigner-profi.de/joomla-webdesign/shop/addons/minimummaximum-number-of-products-for-usergroup.html), but it's not what I'm looking for.