Let’s say you have 10 variants of a product and you want your customer to select the minimum variant of 5 otherwise, they won’t be able to add it to the cart or checkout.

To get the feature, install the "MultiVariants - Bulk Order" app in your Shopify store. This feature is available in the "Professional" package and follow the instructions below:

•  From the admin panel, click on “Set Rules”
• You will see restrictions “Limit the number of variants?”
• You can set a minimum limit and maximum limit.
• Enter your preferred limit.
• Save it. That’s all.