Min/Max Order Quantity per Category for Magento 2 allows store owners to set up both minimum and maximum order quantity of all products belonging to a category for each customer group.Key features of this extension:
Requried quantity can be set up for all products in a category.
Set the limit of order quantity per category for different customer groups.
Product category will be shown in shopping cart.
Min/max quantity rules of all categories will be applied for product belongs to multiple categories.