Validate and block checkout based on predefined conditions
With custom rules builder you can create and deploy checkout constrains. Minimum and maximum item quantities, required customer/product tags combinations, product availability only for authenticated users, validation based on product metafields, tags, cart attributes, line attributes and many more.
Block or validate purchase in product, cart and checkout...
Limit the quantity of each purchase to a minimum or maximum...
Avoid Errors with Order Limits on the Products in Your Cart...
Restrict purchasing of incompatible products together