# type NotNullError (v202602)

**Service** [AdRuleService](https://developers.google.com/ad-manager/api/reference/v202602/AdRuleService.NotNullError) [AdjustmentService](https://developers.google.com/ad-manager/api/reference/v202602/AdjustmentService.NotNullError) [AdsTxtService](https://developers.google.com/ad-manager/api/reference/v202602/AdsTxtService.NotNullError) [AudienceSegmentService](https://developers.google.com/ad-manager/api/reference/v202602/AudienceSegmentService.NotNullError) [CdnConfigurationService](https://developers.google.com/ad-manager/api/reference/v202602/CdnConfigurationService.NotNullError) [CmsMetadataService](https://developers.google.com/ad-manager/api/reference/v202602/CmsMetadataService.NotNullError) [CompanyService](https://developers.google.com/ad-manager/api/reference/v202602/CompanyService.NotNullError) [ContactService](https://developers.google.com/ad-manager/api/reference/v202602/ContactService.NotNullError) [ContentBundleService](https://developers.google.com/ad-manager/api/reference/v202602/ContentBundleService.NotNullError) [ContentService](https://developers.google.com/ad-manager/api/reference/v202602/ContentService.NotNullError) [CreativeService](https://developers.google.com/ad-manager/api/reference/v202602/CreativeService.NotNullError) [CreativeSetService](https://developers.google.com/ad-manager/api/reference/v202602/CreativeSetService.NotNullError) [CreativeTemplateService](https://developers.google.com/ad-manager/api/reference/v202602/CreativeTemplateService.NotNullError) [CreativeWrapperService](https://developers.google.com/ad-manager/api/reference/v202602/CreativeWrapperService.NotNullError) [CustomFieldService](https://developers.google.com/ad-manager/api/reference/v202602/CustomFieldService.NotNullError) [CustomTargetingService](https://developers.google.com/ad-manager/api/reference/v202602/CustomTargetingService.NotNullError) [DaiAuthenticationKeyService](https://developers.google.com/ad-manager/api/reference/v202602/DaiAuthenticationKeyService.NotNullError) [DaiEncodingProfileService](https://developers.google.com/ad-manager/api/reference/v202602/DaiEncodingProfileService.NotNullError) [ForecastService](https://developers.google.com/ad-manager/api/reference/v202602/ForecastService.NotNullError) [InventoryService](https://developers.google.com/ad-manager/api/reference/v202602/InventoryService.NotNullError) [LabelService](https://developers.google.com/ad-manager/api/reference/v202602/LabelService.NotNullError) [LineItemCreativeAssociationService](https://developers.google.com/ad-manager/api/reference/v202602/LineItemCreativeAssociationService.NotNullError) [LineItemService](https://developers.google.com/ad-manager/api/reference/v202602/LineItemService.NotNullError) [LineItemTemplateService](https://developers.google.com/ad-manager/api/reference/v202602/LineItemTemplateService.NotNullError) [LiveStreamEventService](https://developers.google.com/ad-manager/api/reference/v202602/LiveStreamEventService.NotNullError) [MobileApplicationService](https://developers.google.com/ad-manager/api/reference/v202602/MobileApplicationService.NotNullError) [NativeStyleService](https://developers.google.com/ad-manager/api/reference/v202602/NativeStyleService.NotNullError) [NetworkService](https://developers.google.com/ad-manager/api/reference/v202602/NetworkService.NotNullError) [OrderService](https://developers.google.com/ad-manager/api/reference/v202602/OrderService.NotNullError) [PlacementService](https://developers.google.com/ad-manager/api/reference/v202602/PlacementService.NotNullError) [ProposalLineItemService](https://developers.google.com/ad-manager/api/reference/v202602/ProposalLineItemService.NotNullError) **ProposalService** [PublisherQueryLanguageService](https://developers.google.com/ad-manager/api/reference/v202602/PublisherQueryLanguageService.NotNullError) [ReportService](https://developers.google.com/ad-manager/api/reference/v202602/ReportService.NotNullError) [SegmentPopulationService](https://developers.google.com/ad-manager/api/reference/v202602/SegmentPopulationService.NotNullError) [SiteService](https://developers.google.com/ad-manager/api/reference/v202602/SiteService.NotNullError) [StreamActivityMonitorService](https://developers.google.com/ad-manager/api/reference/v202602/StreamActivityMonitorService.NotNullError) [SuggestedAdUnitService](https://developers.google.com/ad-manager/api/reference/v202602/SuggestedAdUnitService.NotNullError) [TargetingPresetService](https://developers.google.com/ad-manager/api/reference/v202602/TargetingPresetService.NotNullError) [TeamService](https://developers.google.com/ad-manager/api/reference/v202602/TeamService.NotNullError) [UserService](https://developers.google.com/ad-manager/api/reference/v202602/UserService.NotNullError) [UserTeamAssociationService](https://developers.google.com/ad-manager/api/reference/v202602/UserTeamAssociationService.NotNullError) [YieldGroupService](https://developers.google.com/ad-manager/api/reference/v202602/YieldGroupService.NotNullError) **Inheritance** [ApiError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.ApiError) ▼ [ApiVersionError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.ApiVersionError) [AudienceSegmentError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.AudienceSegmentError) [AuthenticationError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.AuthenticationError) [BillingError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.BillingError) [CollectionSizeError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.CollectionSizeError) [CommonError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.CommonError) [CurrencyCodeError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.CurrencyCodeError) [CustomFieldValueError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.CustomFieldValueError) [DealError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.DealError) [EntityChildrenLimitReachedE...](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.EntityChildrenLimitReachedError "EntityChildrenLimitReachedError") [EntityLimitReachedError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.EntityLimitReachedError) [ExchangeRateError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.ExchangeRateError) [FeatureError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.FeatureError) [ForecastError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.ForecastError) [InternalApiError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.InternalApiError) [InvalidUrlError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.InvalidUrlError) [LabelEntityAssociationError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.LabelEntityAssociationError) [LineItemOperationError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.LineItemOperationError) **NotNullError** [NullError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.NullError) [ParseError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.ParseError) [PermissionError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.PermissionError) [PrecisionError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.PrecisionError) [ProgrammaticError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.ProgrammaticError) [ProposalActionError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.ProposalActionError) [ProposalError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.ProposalError) [ProposalLineItemError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.ProposalLineItemError) [ProposalLineItemMakegoodError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.ProposalLineItemMakegoodError) [ProposalLineItemProgrammati...](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.ProposalLineItemProgrammaticError "ProposalLineItemProgrammaticError") [PublisherQueryLanguageConte...](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.PublisherQueryLanguageContextError "PublisherQueryLanguageContextError") [PublisherQueryLanguageSynta...](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.PublisherQueryLanguageSyntaxError "PublisherQueryLanguageSyntaxError") [QuotaError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.QuotaError) [RangeError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.RangeError) [RequiredCollectionError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.RequiredCollectionError) [RequiredError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.RequiredError) [RequiredNumberError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.RequiredNumberError) [ServerError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.ServerError) [StatementError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.StatementError) [StringFormatError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.StringFormatError) [StringLengthError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.StringLengthError) [TeamError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.TeamError) [TimeZoneError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.TimeZoneError) [TypeError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.TypeError) [UniqueError](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.UniqueError)

Caused by supplying a null value for an attribute that cannot be null.

*** ** * ** ***

Namespace
:
    `https://www.google.com/apis/ads/publisher/v202602`

| ## Field ||
|---|---|
| **`ApiError` (inherited)** ||
| ### `fieldPath` | ` xsd:string` The OGNL field path to identify cause of error. |
| ### `fieldPathElements` | ` https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.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. |
| **`NotNullError`** ||
| ### `reason` | ` https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.NotNullError.Reason ` The error reason represented by an enum. *** ** * ** *** **Enumerations** `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. <br /> |