Custom logic to check for offer - YITH Request a quote

functions.php

<?php
/**
 * @snippet       WooCommerce - Custom Logic for YITH Request a Quote
 * @author        Redlight Media AB / Christopher Hedqvist
 * @compatible    WooCommerce 3.6.2
 */
function redlight_fortnox_ywraq( $is_offer, $order_id ) {
    $order = new WC_Order($order_id);
    if( 'yes' === $order->get_meta('ywraq_raq',true) ){
      $is_offer = true;  
    }
    return $is_offer;
}
add_filter('obj_fortnox_is_offer', 'redlight_fortnox_ywraq', 10, 2 );