[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-06 UTC."],[],["The content lists numerous services within an ad management system, including AdRuleService, AdjustmentService, AdsTxtService, AudienceSegmentService, CdnConfigurationService, and others. These services manage various aspects of ad operations. Additionally, CommonError.Reason defines error types like `NOT_FOUND`, `ALREADY_EXISTS`, `NOT_APPLICABLE`, `DUPLICATE_OBJECT`, `CANNOT_UPDATE`, `UNSUPPORTED_OPERATION`, `CONCURRENT_MODIFICATION`, and `UNKNOWN`, providing details on why operations might fail. The namespace for these services is also specified.\n"],null,["# enum CommonError.Reason (v202502)\n\n**Service** \n[AdRuleService](/ad-manager/api/reference/v202502/AdRuleService.CommonError.Reason) [AdjustmentService](/ad-manager/api/reference/v202502/AdjustmentService.CommonError.Reason) [AdsTxtService](/ad-manager/api/reference/v202502/AdsTxtService.CommonError.Reason) [AudienceSegmentService](/ad-manager/api/reference/v202502/AudienceSegmentService.CommonError.Reason) **CdnConfigurationService** [CmsMetadataService](/ad-manager/api/reference/v202502/CmsMetadataService.CommonError.Reason) [CompanyService](/ad-manager/api/reference/v202502/CompanyService.CommonError.Reason) [ContactService](/ad-manager/api/reference/v202502/ContactService.CommonError.Reason) [ContentBundleService](/ad-manager/api/reference/v202502/ContentBundleService.CommonError.Reason) [ContentService](/ad-manager/api/reference/v202502/ContentService.CommonError.Reason) [CreativeService](/ad-manager/api/reference/v202502/CreativeService.CommonError.Reason) [CreativeSetService](/ad-manager/api/reference/v202502/CreativeSetService.CommonError.Reason) [CreativeTemplateService](/ad-manager/api/reference/v202502/CreativeTemplateService.CommonError.Reason) [CreativeWrapperService](/ad-manager/api/reference/v202502/CreativeWrapperService.CommonError.Reason) [CustomFieldService](/ad-manager/api/reference/v202502/CustomFieldService.CommonError.Reason) [CustomTargetingService](/ad-manager/api/reference/v202502/CustomTargetingService.CommonError.Reason) [DaiAuthenticationKeyService](/ad-manager/api/reference/v202502/DaiAuthenticationKeyService.CommonError.Reason) [DaiEncodingProfileService](/ad-manager/api/reference/v202502/DaiEncodingProfileService.CommonError.Reason) [ForecastService](/ad-manager/api/reference/v202502/ForecastService.CommonError.Reason) [InventoryService](/ad-manager/api/reference/v202502/InventoryService.CommonError.Reason) [LabelService](/ad-manager/api/reference/v202502/LabelService.CommonError.Reason) [LineItemCreativeAssociationService](/ad-manager/api/reference/v202502/LineItemCreativeAssociationService.CommonError.Reason) [LineItemService](/ad-manager/api/reference/v202502/LineItemService.CommonError.Reason) [LineItemTemplateService](/ad-manager/api/reference/v202502/LineItemTemplateService.CommonError.Reason) [LiveStreamEventService](/ad-manager/api/reference/v202502/LiveStreamEventService.CommonError.Reason) [MobileApplicationService](/ad-manager/api/reference/v202502/MobileApplicationService.CommonError.Reason) [NativeStyleService](/ad-manager/api/reference/v202502/NativeStyleService.CommonError.Reason) [NetworkService](/ad-manager/api/reference/v202502/NetworkService.CommonError.Reason) [OrderService](/ad-manager/api/reference/v202502/OrderService.CommonError.Reason) [PlacementService](/ad-manager/api/reference/v202502/PlacementService.CommonError.Reason) [ProposalLineItemService](/ad-manager/api/reference/v202502/ProposalLineItemService.CommonError.Reason) [ProposalService](/ad-manager/api/reference/v202502/ProposalService.CommonError.Reason) [PublisherQueryLanguageService](/ad-manager/api/reference/v202502/PublisherQueryLanguageService.CommonError.Reason) [ReportService](/ad-manager/api/reference/v202502/ReportService.CommonError.Reason) [SegmentPopulationService](/ad-manager/api/reference/v202502/SegmentPopulationService.CommonError.Reason) [SiteService](/ad-manager/api/reference/v202502/SiteService.CommonError.Reason) [StreamActivityMonitorService](/ad-manager/api/reference/v202502/StreamActivityMonitorService.CommonError.Reason) [SuggestedAdUnitService](/ad-manager/api/reference/v202502/SuggestedAdUnitService.CommonError.Reason) [TargetingPresetService](/ad-manager/api/reference/v202502/TargetingPresetService.CommonError.Reason) [TeamService](/ad-manager/api/reference/v202502/TeamService.CommonError.Reason) [UserService](/ad-manager/api/reference/v202502/UserService.CommonError.Reason) [UserTeamAssociationService](/ad-manager/api/reference/v202502/UserTeamAssociationService.CommonError.Reason) [YieldGroupService](/ad-manager/api/reference/v202502/YieldGroupService.CommonError.Reason) **Dependencies** \n[CommonError](/ad-manager/api/reference/v202502/CdnConfigurationService.CommonError) \n▼\n**CommonError.Reason**\n\nDescribes reasons for common errors\n\n*** ** * ** ***\n\nNamespace\n:\n `https://www.google.com/apis/ads/publisher/v202502`\n\n| Enumeration | Description |\n|---------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------|\n| `NOT_FOUND` | Indicates that an attempt was made to retrieve an entity that does not exist. |\n| `ALREADY_EXISTS` | Indicates that an attempt was made to create an entity that already exists. |\n| `NOT_APPLICABLE` | Indicates that a value is not applicable for given use case. |\n| `DUPLICATE_OBJECT` | Indicates that two elements in the collection were identical. |\n| `CANNOT_UPDATE` | Indicates that an attempt was made to change an immutable field. |\n| `UNSUPPORTED_OPERATION` | Indicates that the requested operation is not supported. |\n| `CONCURRENT_MODIFICATION` | Indicates that another request attempted to update the same data in the same network at about the same time. Please wait and try the request again. |\n| `UNKNOWN` | The value returned if the actual value is not exposed by the requested API version. |"]]