settings.php

См. документацию.

<?php
 
namespace Bitrix\Sale\Exchange\Integration;
 
use \Bitrix\Main\License\UrlProvider;
 
class Settings
{
    public static function getOAuthRestUrl()
    {
        $urlProvider = new UrlProvider();
 
        return "https://oauth.{$urlProvider->getTechDomain()}/rest/";
    }
 
    public static function getOAuthAccessTokenUrl()
    {
        $urlProvider = new UrlProvider();
 
        return "https://oauth.{$urlProvider->getTechDomain()}/oauth/token/";
    }
}