You can set both a minimum order quantity and a maximum order quantity that a customer may purchase of a particular product. If a customer attempts to order less than the minimum order quantity or more than the maximum order quantity, he or she will be notified on the front end before checkout.

To enable a maximum or minimum order quantity of a product (see below regarding variants, including options and personalizations.)
  • Click on Inventory (left-hand menu) and click on Manage Products.
  • Click on the name of the product you would like to edit.
  • Click Inventory.
  • Inside the "Order Quantity" section, set the "Minimum Order Quantity" and/or "Maximum Order Quantity" and then click Save.
  • Now when a customer tries to checkout, if they have not met the minimum or have exceeded the maximum, they will get an error message: "You have not met the minimum order quantity of [product name] of [quantity amount]" or "You have exceeded the maximum order quantity of [quantity amount] for [product name]."
To enable the minimum and maximum quantity of variants (including options and personalizations):
By default, if you are using variants, whatever minimum or maximum order quantity you set for the product will be applied to the variants. For example, if you have a T-shirt with a minimum order quantity of 3, and you can get the shirt in either red or blue, you would have to order a minimum of 3 red shirts and/or 3 blue shirts. You could not mix the colors and get 2 red shirts and 1 blue. If you have a maximum order quantity of 3, then you could order up to 3 red shirts and 3 blue shirts, but no more than 3 of each color.
If you would like to allow for a mixture of colors when using a minimum order quantity, such as with the example above of 2 red shirts and 1 blue shirt for a total of 3, there is a setting for this in your Inventory Settings.
To enable this:
  • Click on link in the upper righthand corner of your admin.
  • Click Inventory Settings.
  • On the page that appears, scroll through the product settings until you reach "Combine items to determine minimum order quantity" setting and make sure it's checked.
  • Click Save when you are done.