public String deleteAdgroup(List<Long> adgroupIds) throws ApiException { DeleteAdgroupRequest request = new DeleteAdgroupRequest(); request.setAdgroupIds(adgroupIds); AdgroupService adgroupService = commonService.getService(AdgroupService.class); DeleteAdgroupResponse response = adgroupService.deleteAdgroup(request); if (response == null) { try { TimeUnit.SECONDS.sleep(3); } catch (InterruptedException e) { e.printStackTrace(); } if (response != null) return response.getResponse(); } return ""; }