Ova Cars for ShopMagic

<?php
/**
 * Plugin Name: Ova Cars for ShopMagic
 */

use WPDesk\ShopMagic\Placeholder\Builtin\WooCommerceOrderBasedPlaceholder;

add_action(
    'shopmagic/core/placeholders',
    static function (array $placeholders) {
        $placeholders[] = new class extends WooCommerceOrderBasedPlaceholder {
            public function get_slug(): string
            {
                return parent::get_slug() . '.ovacrs_pickup_date';
            }

            public function value( array $parameters = null ): string
            {
                // Are you sure, method `get_order_ovacars_pickup_date` exists?
                // Most likey, you will have instance of `\WC_Order`
                // inside this method.
                return $this->is_order_provided() ? $this->get_order()->get_order_ovacars_pickup_date() : '';
            }
        }
        return $placeholders;
    }
);