WooCommerce Cart - Set minimum order amount

function prefix_wc_minimum_order_amount() {

    // Set this variable to specify a minimum order value
    $minimum = 100;

    if ( WC()->cart->total < $minimum ) {

        $message = sprintf( 'You must have an order with a minimum of %s to place your order, your current order total is %s.' ,
            wc_price( $minimum ),
            wc_price( WC()->cart->total )
        );

        wc_add_notice( $message, 'error');
    }
}

add_action( 'woocommerce_check_cart_items', 'prefix_wc_minimum_order_amount' );
add_action( 'woocommerce_checkout_process', 'prefix_wc_minimum_order_amount' );