Code-Snippets-Functions/Execute a function on a child site/WooCommerce/set-a-minimum-order-amount-excluding-shipping-and-vat.txt

/**
 * Minimum order subtotal amount for checkout (excl shipping and taxes)
 */
add_action( 'woocommerce_checkout_process', 'wc_minimum_order_amount' );
add_action( 'woocommerce_before_cart' , 'wc_minimum_order_amount' );
 
function wc_minimum_order_amount() {
    $minimum  = 15; // <=== Here specify the minimum order amount
    $subtotal = WC()->cart->get_subtotal(); // Cart subtotal excl. shipping and taxes

    if ( $subtotal < $minimum ) {
        $message = sprintf( 
            esc_html__('Your current order subtotal is %s. To place your order, you must have a minimum amount of %s (excl. shipping and VAT).', 'woocommerce'), 
            wc_price( $subtotal ), 
            wc_price( $minimum )
        );

        if( is_cart() ) {
            wc_print_notice( $message, 'error' );
        } else {
            wc_add_notice( $message, 'error' );
        }
    }
}