Set a minimum order amount for specific postcodes in WooCommerce

Set a minimum order amount for specific postcodes in WooCommerce on your child site.

Snippet Type

Execute on Child Sites

Snippet

add_action( 'woocommerce_checkout_process', 'wc_minimum_order_amount' );
add_action( 'woocommerce_before_cart' , 'wc_minimum_order_amount' );
function wc_minimum_order_amount() {
    $minimum   = 50; // Set the minimum order value
    $postcodes = array('99152', '99154'); // Define your targeted postcodes in the array
    $postcode  = ''; // Initializing

    if ( isset($_POST['shipping_postcode']) && ! empty($_POST['shipping_postcode']) ) {
        $postcode = $_POST['shipping_postcode'];
        if ( empty($postcode) && isset($_POST['billing_postcode']) && ! empty($_POST['billing_postcode']) ) {
            $postcode = $_POST['billing_postcode'];
        }
    } elseif ( $postcode = WC()->customer->get_shipping_postcode() ) {
        if ( empty($postcode) ) {
            $postcode = WC()->customer->get_billing_postcode();
        }
    }

    if ( WC()->cart->total < $minimum && ! empty($postcode) && in_array( $postcode, $postcodes ) ) {
        $error_notice = sprintf( 'Your current order total is %s — you must have an order with a minimum of %s to place your order ' , 
            wc_price( WC()->cart->total ), 
            wc_price( $minimum )
        );

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