Check your NS_HOST address is correct. One of the best methods is to use getDataCentersUrls to get the correct NS_HOST address. Example : $params = new GetDataCenterUrlsRequest(); $params->account = NS_ACCOUNT; $response = $service->getDataCenterUrls($params); Then when assigning your NS_HOST get it from :…

Change the line $request = new JobMilestonesList(); to $request = new GetRequest(); Full code would be : $request = new GetRequest(); $request->baseRef = new RecordRef(); $request->baseRef->internalId = "18076"; $request->baseRef->type = "job"; $getResponse = $service->get($request); echo "<pre>"; print_r($getResponse);…