Buyers must buy at least X number of items?
In the shop I am building buyers will have to buy at least 10 items. When someone tries to start the checkout process, a message should be shown telling the users the number of selected items is less than 10.
I already created a rule to apply accounts when more than 25 items are bought, so I know how to create a rule that checks the number of selected items. I cannot figure out how to stop the checkout process. Any ideas???