# type NullError (v202602)

**Service** [AdjustmentService](https://developers.google.com/ad-manager/api/reference/v202602/AdjustmentService.NullError) [CompanyService](https://developers.google.com/ad-manager/api/reference/v202602/CompanyService.NullError) [CreativeService](https://developers.google.com/ad-manager/api/reference/v202602/CreativeService.NullError) [CreativeSetService](https://developers.google.com/ad-manager/api/reference/v202602/CreativeSetService.NullError) [CreativeTemplateService](https://developers.google.com/ad-manager/api/reference/v202602/CreativeTemplateService.NullError) [CreativeWrapperService](https://developers.google.com/ad-manager/api/reference/v202602/CreativeWrapperService.NullError) [CustomFieldService](https://developers.google.com/ad-manager/api/reference/v202602/CustomFieldService.NullError) [CustomTargetingService](https://developers.google.com/ad-manager/api/reference/v202602/CustomTargetingService.NullError) [DaiEncodingProfileService](https://developers.google.com/ad-manager/api/reference/v202602/DaiEncodingProfileService.NullError) [ForecastService](https://developers.google.com/ad-manager/api/reference/v202602/ForecastService.NullError) [InventoryService](https://developers.google.com/ad-manager/api/reference/v202602/InventoryService.NullError) [LabelService](https://developers.google.com/ad-manager/api/reference/v202602/LabelService.NullError) [LineItemCreativeAssociationService](https://developers.google.com/ad-manager/api/reference/v202602/LineItemCreativeAssociationService.NullError) [LineItemService](https://developers.google.com/ad-manager/api/reference/v202602/LineItemService.NullError) [LineItemTemplateService](https://developers.google.com/ad-manager/api/reference/v202602/LineItemTemplateService.NullError) [LiveStreamEventService](https://developers.google.com/ad-manager/api/reference/v202602/LiveStreamEventService.NullError) [MobileApplicationService](https://developers.google.com/ad-manager/api/reference/v202602/MobileApplicationService.NullError) [NativeStyleService](https://developers.google.com/ad-manager/api/reference/v202602/NativeStyleService.NullError) [OrderService](https://developers.google.com/ad-manager/api/reference/v202602/OrderService.NullError) [PlacementService](https://developers.google.com/ad-manager/api/reference/v202602/PlacementService.NullError) **ProposalService** [PublisherQueryLanguageService](https://developers.google.com/ad-manager/api/reference/v202602/PublisherQueryLanguageService.NullError) [SiteService](https://developers.google.com/ad-manager/api/reference/v202602/SiteService.NullError) [TeamService](https://developers.google.com/ad-manager/api/reference/v202602/TeamService.NullError) [UserTeamAssociationService](https://developers.google.com/ad-manager/api/reference/v202602/UserTeamAssociationService.NullError) **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](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.NotNullError) **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)

Errors associated with violation of a NOT NULL check.

*** ** * ** ***

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. |
| **`NullError`** ||
| ### `reason` | ` https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.NullError.Reason ` The error reason represented by an enum. *** ** * ** *** **Enumerations** `NULL_CONTENT` :   Specified list/container must not contain any null elements <br /> |