public function save_attendee_meta_to_order( $order_id, $post_data ) {
		$order_items = edd_get_payment_meta_cart_details( $order_id );

		// Bail if the order is empty
		if ( empty( $order_items ) ) {
			return;
		}

		$product_ids = array();

		// gather product ids
		foreach ( (array) $order_items as $item ) {
			if ( empty( $item['id'] ) ) {
				continue;
			}

			$product_ids[] = $item['id'];
		}

		$meta_object = Tribe__Tickets_Plus__Main::instance()->meta();

		// build the custom meta data that will be stored in the order meta
		if ( ! $order_meta = $meta_object->build_order_meta( $product_ids ) ) {
			return;
		}

		// store the custom meta on the order
		update_post_meta( $order_id, Tribe__Tickets_Plus__Meta::META_KEY, $order_meta, true );

		// clear out product custom meta data cookies
		foreach ( $product_ids as $product_id ) {
			$meta_object->clear_meta_cookie_data( $product_id );
		}
	}