plugin WooCommerce Checkout Manager

If the plugin is not working for you, and you don’t mind a bit of coding you could try adding the following code to your functions.php:

// Add VAT field to the Checkout Page
add_action('woocommerce_after_order_notes', 'add_custom_checkout_field');

function add_custom_checkout_field($checkout) {
    echo '<div id="custom_checkout_field"><h2>' . __('VAT Number') . '</h2>';
    woocommerce_form_field('vat_number', array(
        'type'          => 'text',
        'class'         => array('vat-number-field form-row-wide'),
        'label'         => __('Enter VAT Number'),
        'placeholder'   => __('VAT Number'),
        'required'      => true,
    ), $checkout->get_value('vat_number'));
    echo '</div>';
}

// Validate the VAT number field
add_action('woocommerce_checkout_process', 'validate_custom_checkout_field');
function validate_custom_checkout_field() {
    if (!$_POST['vat_number'] || empty($_POST['vat_number']))
        wc_add_notice(__('Please enter your VAT number.'), 'error');
}

// Save the VAT number to order meta
add_action('woocommerce_checkout_update_order_meta', 'save_custom_checkout_field');
function save_custom_checkout_field($order_id) {
    if (!empty($_POST['vat_number'])) {
        update_post_meta($order_id, 'VAT Number', sanitize_text_field($_POST['vat_number']));
    }
}

@rafaelminuesa

Is this solution for the traditional checkout or for the woocommerce blocks checkout?

This would work for the traditional WooCommerce checkout. The WooCommerce Blocks checkout, which uses a block-based system, would require a more complex approach due to its architecture and compatibility issues with many existing plugins and custom code solutions.

You could create custom block variations for the WooCommerce checkout block. This involves using React and the WordPress blocks API to define new block types that include your custom fields.

Or you could try the Experimental Additional Checkout Fields API:
https://github.com/woocommerce/woocommerce/blob/trunk/plugins/woocommerce-blocks/docs/third-party-developers/extensibility/checkout-block/additional-checkout-fields.md

Or the ‘Simple Custom Fields for WooCommerce Blocks Checkout’ plugin:
https://ptwooplugins.com/product/simple-custom-fields-for-woocommerce-blocks-checkout/‘

• This reply was modified 10 months, 3 weeks ago by Rafael Minuesa.

Hi there @arkimaison,

Could you please share with us the direct link to the exact plugin you are using?

Once we are aware of the plugin, we will be able to provide further steps to take.

Hi ?? We haven’t heard back from you in a while, so I’m going to mark this as resolved – we’ll be here if and/or when you are ready to continue.