How Do I Add a Custom Field in WooCommerce Registration Form?

Adding a custom field to the WooCommerce registration form is simple and straightforward. There are two methods of adding custom fields to the form, one through the WordPress admin panel and the other through code.

Adding a custom field through the WordPress admin panel is the easiest method. Simply navigate to “WooCommerce” > “Settings” > “Accounts” and click on the “Add New Field” button.

From there, you can add any custom fields you want, including text fields, radio buttons, checkboxes, and more.

If you want to add a custom field through code, you’ll need to add a few lines of code to your theme’s “functions.php” file.

First, you’ll need to register the field:

add_filter( 'woocommerce_register_form_fields', 'woo_add_custom_register_fields' );
 
function woo_add_custom_register_fields( $fields ) {
 
    $fields['billing']['first_name'] = array(
        'label'     => __( 'First Name', 'woocommerce' ),
        'required'  => true,
        'class'     => array( 'form-row-first' )
    );

    return $fields;
}

This code adds a new “First Name” field to the registration form. You can add as many fields as you want by adding additional lines of code for each field. Once you’ve registered the new fields, you’ll need to save them:

add_action( 'woocommerce_register_post', 'woo_save_custom_register_fields', 10, 3 );

 function woo_save_custom_register_fields( $username, $email, $validation_errors ) {

    if ( isset( $_POST['billing_first_name'] ) && empty( $_POST['billing first name'] ) ) {

        $validation errors->add( 'billing first name error', __( 'Please enter your first name.', 'woocommerce' ) );

    }

 }

This code saves the new fields that were added. Be sure to replace “billing first name” with the name of your field. Now that the custom fields have been added and saved, they will appear on the registration form.

Conclusion:

Adding a custom field to the WooCommerce registration form is simple and straightforward. There are two methods of adding custom fields to the form – one through the WordPress admin panel and the other through code.