Chris Runnells

Do you use the <a href="http://shopplugin.net" rel="nofollow ugc">Shopp plugin</a> for e-commerce? Do you want to make sure your customers order a minimum amount of items, or spend a minimum amount of money? Then the Shopp Minimum Order plugin is what you need! It will prevent customers from checking out unless they meet the minimum order requirements set by the shop owner.
This plugin requires you to be running at least Shopp 1.3
Once you’ve installed and activated the plugin, there will be a link in the Shopp > Setup menu where you configure the minimum order values. Set the minimum type you want to use, enter a number, then hit Save and you’re done!
The plugin will now generate an error message during the Checkout process if the order does not meet the requirements you set. We highly recommend that you notify your customers (via a message on the Shopping Cart page for example) that you have a minimum order requirement, so they’re not surprised when they try to check out.
New Feature: Version 1.3 supports per-product minimums! Set a minimum quantity for each product independent of the store minimums.
I’ve got some ideas for improving this plugin down the road, so I’ll be working on it as I have time.

Shopp Minimum Order

This plugin allows you to set a minimum order amount in the Shopp e-commerce checkout process.

nicnetza

This plugin extension for WooCommerce allows for the setting, on a product by product basis, of the minimum and/or maximum quantities that the product can be ordered (added to cart). This information can optionally be displayed on the product page. The minimum and/or maximum quanity per category or value per category can also be set. The plugin also provides the option to hide a product category on the shop page.
The plugin os provided AS IS, with no warranty.
<h3>Configuration</h3>
There is only one setting to configure, whether to display the Maximum and/or Minimum Quatities for a product to the user.
In Worpress Admin Console, Select Plugins on the left.
Select Settings under the Simple MinMax Plugin.
If no Settings option appears, this means that WooCommerce is not installed AND activated.
The Option allows to select whether to display the Minimum and/or Maximum quantities on the product page if they are configured for a product.
The Default option is Do Not Display Min/Max – this means nothing will be displayed
Option Above The Add To Cart Button, will display any Minimum and/or Maximum information Above the Add To cart Button
Option Under The Add To Cart Button, will display any Minimum and/or Maximum information Under the Add To cart Button
<h4>Setting Min/Max Per Product</h4>
To add a Minimum and/or Maximum quantity to a product, go to WooCommerce Products and select inventory.
A box will be displayed to optionally set a Minimum or Maximum add to cart quantity.
<h4>Setting Min/Max Per Category</h4>
When creating a new category or editing a ctaegory, the Minimum and Maximum order value or quanity can be set. Ideal for limiting the number or value of free samples etc!

Simple MinMax

Dose exactly what it says it will do perfectly!

Great Plugin

A plugin to set the minimum and/or maximum :- order quantities on a WooCommerce product by product basis, and/or minimum and maximum quantity per cate …

Shopp Minimum Order vs Simple MinMax