[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-06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 core content outlines various services within an ad management platform, including AdRule, Adjustment, AudienceSegment, Content, Creative, Forecast, Inventory, and Reporting services. It also lists supporting services like User, Team, and Network services. Additionally, it details common error reasons, such as `NOT_FOUND`, `ALREADY_EXISTS`, `DUPLICATE_OBJECT`, `CANNOT_UPDATE`, and `UNSUPPORTED_OPERATION`, which indicate issues encountered during entity interactions or data modification. `CommonError.Reason` provides descriptions for each of the mentioned error categories.\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](/ad-manager/api/reference/v202502/CdnConfigurationService.CommonError.Reason) [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** [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/ForecastService.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. |"]]