add_filter('woocommerce_checkout_fields', 'add_nif_to_checkout_fields');

function add_nif_to_checkout_fields($fields) {
    $fields['billing']['billing_nif'] = array(
        'type'        => 'text',
        'label'       => __('NIF', 'woocommerce'),
        'placeholder' => __('Enter your NIF', 'woocommerce'),
        'required'    => true,
        'class'       => array('form-row-wide'),
        'priority'    => 50, // Adjust the display order
    );
    return $fields;
}

add_action( 'woocommerce_checkout_update_order_meta', 'save_nif_field_data' );

function save_nif_field_data( $order_id ) {
    if ( isset( $_POST['billing_nif'] ) ) {
        update_post_meta( $order_id, '_billing_nif', sanitize_text_field( $_POST['billing_nif'] ) );
    }
}

And the “NIF” field doesn’t appear in the billing form, I don’t know if there’s something wrong with the code or that is something blocking me from editing the checkout.

I wonder if there′s a best practice to add a custom field to a form, to capture the user′s ID , and display it on the Entries. Thank you!

Is this possible?

Thanks!

The Google Listings & Ads plugin does not recognize MetaBox custom fields assigned to products by default.
Is there any function/filter I should use?

Thanks in advance,
Francesco

I have created my own field (named: availability) for one of the apartment rental options (field options are: free, reserved, rented).

In the Pods options, the own field has been created as:
Field relation – Relation,
Relation type – Simple (own defined list)
Custom Defined Options – free|FREE, reserved|RESERVED, rented|RENTED.

My question: how can I add a dependency so that the front-end apartment rental status font color is displayed as:
free – green font, reserved – yellow font, rented – red font ?

Can I set this type of dependency in the Pods plugin, or somehow put it in the functions.php file, how to do it?

I will be very grateful for your help!

Is there any way to display the custom fields directly in the list view?

With the default settings, I can only choose to have them hover when clicked in tooltip.

I would like to be able to see the information of the custom fields directly in the list view.

We use Jetpack crm for creating invoices.
And we want to add more fields to the invoice template.

Could you please clarify on how to output data from a created custom field to an invoice template?

Thanks