Restrict Quantity & Limit Purchase & Min/Max Limit on Products
UpsellFly Order Limit Quantity app helps manage inventory by limiting products, quantities in the cart. It can be done on a per-product basis, or for the entire store. Plenty of mechanisms for restricting quantities to eliminate the problem of over-ordering.
Validate checkout information to prevent unexpected checkouts...
Minimum & maximum limits on your cart, products and...
Maximize sales with preorders, deposits and partial payments...
Block or validate purchase in product, cart and checkout...