Set the required minimum and maximum order quantities or amounts for individual products, categories, or globally with quantity step control.

This plugin for woocommerce shows a message when user doesn't reach a minimum sale amount

ELEX WooCommerce Name Your Price Plugin allows the customer to give his own price and proceed with the checkout. You can easily set the minimum price for your woocommerce products both globally and individually.

Min and max Qty Rule Woocommerce base on product category qty , total cart qty and woocommerce product base minumum and max rule