This feature forces orders to be over a specific amount of money by warning with notices in Mini-cart, Cart and Checkout pages, and blocking the order from being sent.
To enable, please access Modules Manager and enable Minimum Order Amount .
Access Customizer > WooCommerce > Checkout and locate the Minimum Amount control in which you will need to set the custom amount eg: https://d.pr/i/txICTo .
Watch a quick video recording here https://d.pr/v/qzw1U0 .