**Service** [AdRuleService](https://developers.google.com/ad-manager/api/reference/v202605/AdRuleService.RequiredError) [AdjustmentService](https://developers.google.com/ad-manager/api/reference/v202605/AdjustmentService.RequiredError) [AdsTxtService](https://developers.google.com/ad-manager/api/reference/v202605/AdsTxtService.RequiredError) [AudienceSegmentService](https://developers.google.com/ad-manager/api/reference/v202605/AudienceSegmentService.RequiredError) [CdnConfigurationService](https://developers.google.com/ad-manager/api/reference/v202605/CdnConfigurationService.RequiredError) [CmsMetadataService](https://developers.google.com/ad-manager/api/reference/v202605/CmsMetadataService.RequiredError) [CompanyService](https://developers.google.com/ad-manager/api/reference/v202605/CompanyService.RequiredError) [ContactService](https://developers.google.com/ad-manager/api/reference/v202605/ContactService.RequiredError) [ContentBundleService](https://developers.google.com/ad-manager/api/reference/v202605/ContentBundleService.RequiredError) [ContentService](https://developers.google.com/ad-manager/api/reference/v202605/ContentService.RequiredError) [CreativeService](https://developers.google.com/ad-manager/api/reference/v202605/CreativeService.RequiredError) [CreativeSetService](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.RequiredError) [CreativeTemplateService](https://developers.google.com/ad-manager/api/reference/v202605/CreativeTemplateService.RequiredError) [CreativeWrapperService](https://developers.google.com/ad-manager/api/reference/v202605/CreativeWrapperService.RequiredError) [CustomFieldService](https://developers.google.com/ad-manager/api/reference/v202605/CustomFieldService.RequiredError) [CustomTargetingService](https://developers.google.com/ad-manager/api/reference/v202605/CustomTargetingService.RequiredError) [DaiAuthenticationKeyService](https://developers.google.com/ad-manager/api/reference/v202605/DaiAuthenticationKeyService.RequiredError) [DaiEncodingProfileService](https://developers.google.com/ad-manager/api/reference/v202605/DaiEncodingProfileService.RequiredError) [ForecastService](https://developers.google.com/ad-manager/api/reference/v202605/ForecastService.RequiredError) [InventoryService](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.RequiredError) [LabelService](https://developers.google.com/ad-manager/api/reference/v202605/LabelService.RequiredError) [LineItemCreativeAssociationService](https://developers.google.com/ad-manager/api/reference/v202605/LineItemCreativeAssociationService.RequiredError) **LineItemService** [LineItemTemplateService](https://developers.google.com/ad-manager/api/reference/v202605/LineItemTemplateService.RequiredError) [LiveStreamEventService](https://developers.google.com/ad-manager/api/reference/v202605/LiveStreamEventService.RequiredError) [MobileApplicationService](https://developers.google.com/ad-manager/api/reference/v202605/MobileApplicationService.RequiredError) [NativeStyleService](https://developers.google.com/ad-manager/api/reference/v202605/NativeStyleService.RequiredError) [NetworkService](https://developers.google.com/ad-manager/api/reference/v202605/NetworkService.RequiredError) [OrderService](https://developers.google.com/ad-manager/api/reference/v202605/OrderService.RequiredError) [PlacementService](https://developers.google.com/ad-manager/api/reference/v202605/PlacementService.RequiredError) [ProposalLineItemService](https://developers.google.com/ad-manager/api/reference/v202605/ProposalLineItemService.RequiredError) [ProposalService](https://developers.google.com/ad-manager/api/reference/v202605/ProposalService.RequiredError) [PublisherQueryLanguageService](https://developers.google.com/ad-manager/api/reference/v202605/PublisherQueryLanguageService.RequiredError) [ReportService](https://developers.google.com/ad-manager/api/reference/v202605/ReportService.RequiredError) [SegmentPopulationService](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.RequiredError) [SiteService](https://developers.google.com/ad-manager/api/reference/v202605/SiteService.RequiredError) [StreamActivityMonitorService](https://developers.google.com/ad-manager/api/reference/v202605/StreamActivityMonitorService.RequiredError) [SuggestedAdUnitService](https://developers.google.com/ad-manager/api/reference/v202605/SuggestedAdUnitService.RequiredError) [TargetingPresetService](https://developers.google.com/ad-manager/api/reference/v202605/TargetingPresetService.RequiredError) [TeamService](https://developers.google.com/ad-manager/api/reference/v202605/TeamService.RequiredError) [UserService](https://developers.google.com/ad-manager/api/reference/v202605/UserService.RequiredError) [UserTeamAssociationService](https://developers.google.com/ad-manager/api/reference/v202605/UserTeamAssociationService.RequiredError) [YieldGroupService](https://developers.google.com/ad-manager/api/reference/v202605/YieldGroupService.RequiredError) **Inheritance** [ApiError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.ApiError) ▼ [ApiVersionError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.ApiVersionError) [AssetError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.AssetError) [AudienceSegmentError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.AudienceSegmentError) [AuthenticationError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.AuthenticationError) [ClickTrackingLineItemError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.ClickTrackingLineItemError) [CollectionSizeError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.CollectionSizeError) [CommonError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.CommonError) [CompanyCreditStatusError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.CompanyCreditStatusError) [CreativeError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.CreativeError) [CrossSellError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.CrossSellError) [CurrencyCodeError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.CurrencyCodeError) [CustomFieldValueError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.CustomFieldValueError) [CustomTargetingError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.CustomTargetingError) [DateTimeRangeTargetingError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.DateTimeRangeTargetingError) [DayPartTargetingError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.DayPartTargetingError) [EntityChildrenLimitReachedE...](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.EntityChildrenLimitReachedError "EntityChildrenLimitReachedError") [EntityLimitReachedError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.EntityLimitReachedError) [FeatureError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.FeatureError) [ForecastError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.ForecastError) [FrequencyCapError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.FrequencyCapError) [GenericTargetingError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.GenericTargetingError) [GeoTargetingError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.GeoTargetingError) [GrpSettingsError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.GrpSettingsError) [ImageError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.ImageError) [InternalApiError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.InternalApiError) [InvalidUrlError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.InvalidUrlError) [InventoryTargetingError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.InventoryTargetingError) [LabelEntityAssociationError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.LabelEntityAssociationError) [LineItemActivityAssociation...](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.LineItemActivityAssociationError "LineItemActivityAssociationError") [LineItemCreativeAssociation...](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.LineItemCreativeAssociationError "LineItemCreativeAssociationError") [LineItemError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.LineItemError) [LineItemFlightDateError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.LineItemFlightDateError) [LineItemOperationError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.LineItemOperationError) [MobileApplicationTargetingE...](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.MobileApplicationTargetingError "MobileApplicationTargetingError") [NotNullError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.NotNullError) [NullError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.NullError) [OrderActionError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.OrderActionError) [OrderError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.OrderError) [ParseError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.ParseError) [PermissionError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.PermissionError) [PrecisionError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.PrecisionError) [ProgrammaticError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.ProgrammaticError) [PublisherProvidedSignalsTar...](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.PublisherProvidedSignalsTargetingError "PublisherProvidedSignalsTargetingError") [PublisherQueryLanguageConte...](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.PublisherQueryLanguageContextError "PublisherQueryLanguageContextError") [PublisherQueryLanguageSynta...](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.PublisherQueryLanguageSyntaxError "PublisherQueryLanguageSyntaxError") [QuotaError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.QuotaError) [RangeError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.RangeError) [RegExError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.RegExError) [RequestError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.RequestError) [RequestPlatformTargetingError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.RequestPlatformTargetingError) [RequiredCollectionError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.RequiredCollectionError) **RequiredError** [RequiredNumberError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.RequiredNumberError) [RequiredSizeError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.RequiredSizeError) [ReservationDetailsError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.ReservationDetailsError) [ServerError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.ServerError) [SetTopBoxLineItemError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.SetTopBoxLineItemError) [StatementError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.StatementError) [StringFormatError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.StringFormatError) [StringLengthError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.StringLengthError) [TeamError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.TeamError) [TechnologyTargetingError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.TechnologyTargetingError) [TimeZoneError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.TimeZoneError) [TranscodingError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.TranscodingError) [TypeError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.TypeError) [UniqueError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.UniqueError) [UserDomainTargetingError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.UserDomainTargetingError) [VideoPositionTargetingError](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.VideoPositionTargetingError)

Errors due to missing required field.

*** ** * ** ***

Namespace
:
    `https://www.google.com/apis/ads/publisher/v202605`

| ## Field ||
|---|---|
| **`ApiError` (inherited)** ||
| ### `fieldPath` | ` xsd:string` The OGNL field path to identify cause of error. |
| ### `fieldPathElements` | ` https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.FieldPathElement[]` A parsed copy of the field path. For example, the field path "operations\[1\].operand" corresponds to this list: {FieldPathElement(field = "operations", index = 1), FieldPathElement(field = "operand", index = null)}. |
| ### `trigger` | ` xsd:string` The data that caused the error. |
| ### `errorString` | ` xsd:string` A simple string representation of the error and reason. |
| **`RequiredError`** ||
| ### `reason` | ` https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.RequiredError.Reason ` The error reason represented by an enum. *** ** * ** *** **Enumerations** `REQUIRED` :   Missing required field. <br /> |