AI-generated Key Takeaways
- 
          The content lists various services related to ad management, such as AdRuleService, AdsTxtService, and CreativeService. 
- 
          It also defines a NotNullErrorand its possible reasons, includingARG1_NULL,ARG2_NULL,ARG3_NULL,NULL, andUNKNOWN.
                  Service
               
               
                  AdRuleService
                  AdjustmentService
                  AdsTxtService
                  AudienceSegmentService
                  CdnConfigurationService
                  CmsMetadataService
                  CompanyService
                  ContactService
                  ContentBundleService
                  ContentService
                  CreativeService
                  CreativeSetService
                  CreativeTemplateService
                  CreativeWrapperService
                  CustomFieldService
                  CustomTargetingService
                  DaiAuthenticationKeyService
                  DaiEncodingProfileService
                  ForecastService
                  InventoryService
                  LabelService
                  LineItemCreativeAssociationService
                  LineItemService
                  LineItemTemplateService
                  LiveStreamEventService
                  MobileApplicationService
                  NativeStyleService
                  NetworkService
                  OrderService
                  PlacementService
                  ProposalLineItemService
                  ProposalService
                  PublisherQueryLanguageService
                  ReportService
                  SegmentPopulationService
                  SiteService
                  StreamActivityMonitorService
                  SuggestedAdUnitService
                  TargetingPresetService
                  TeamService
                  UserService
                  UserTeamAssociationService
                  YieldGroupService
               
            
                  Dependencies
               
               
                  NotNullError
                  
            ▼
                  NotNullError.Reason
               The reasons for the target error.
- Namespace
- 
               https://www.google.com/apis/ads/publisher/v202508
| Enumeration | Description | 
|---|---|
| ARG1_NULL | Assuming that a method will not have more than 3 arguments, if it does, return NULL | 
| ARG2_NULL | |
| ARG3_NULL | |
| NULL | |
| UNKNOWN | The value returned if the actual value is not exposed by the requested API version. |