# type NotNullError (v202511)

**Service** [AdRuleService](https://developers.google.com/ad-manager/api/reference/v202511/AdRuleService.NotNullError) [AdjustmentService](https://developers.google.com/ad-manager/api/reference/v202511/AdjustmentService.NotNullError) [AdsTxtService](https://developers.google.com/ad-manager/api/reference/v202511/AdsTxtService.NotNullError) [AudienceSegmentService](https://developers.google.com/ad-manager/api/reference/v202511/AudienceSegmentService.NotNullError) [CdnConfigurationService](https://developers.google.com/ad-manager/api/reference/v202511/CdnConfigurationService.NotNullError) [CmsMetadataService](https://developers.google.com/ad-manager/api/reference/v202511/CmsMetadataService.NotNullError) [CompanyService](https://developers.google.com/ad-manager/api/reference/v202511/CompanyService.NotNullError) [ContactService](https://developers.google.com/ad-manager/api/reference/v202511/ContactService.NotNullError) [ContentBundleService](https://developers.google.com/ad-manager/api/reference/v202511/ContentBundleService.NotNullError) [ContentService](https://developers.google.com/ad-manager/api/reference/v202511/ContentService.NotNullError) [CreativeService](https://developers.google.com/ad-manager/api/reference/v202511/CreativeService.NotNullError) [CreativeSetService](https://developers.google.com/ad-manager/api/reference/v202511/CreativeSetService.NotNullError) [CreativeTemplateService](https://developers.google.com/ad-manager/api/reference/v202511/CreativeTemplateService.NotNullError) [CreativeWrapperService](https://developers.google.com/ad-manager/api/reference/v202511/CreativeWrapperService.NotNullError) [CustomFieldService](https://developers.google.com/ad-manager/api/reference/v202511/CustomFieldService.NotNullError) [CustomTargetingService](https://developers.google.com/ad-manager/api/reference/v202511/CustomTargetingService.NotNullError) [DaiAuthenticationKeyService](https://developers.google.com/ad-manager/api/reference/v202511/DaiAuthenticationKeyService.NotNullError) [DaiEncodingProfileService](https://developers.google.com/ad-manager/api/reference/v202511/DaiEncodingProfileService.NotNullError) [ForecastService](https://developers.google.com/ad-manager/api/reference/v202511/ForecastService.NotNullError) [InventoryService](https://developers.google.com/ad-manager/api/reference/v202511/InventoryService.NotNullError) [LabelService](https://developers.google.com/ad-manager/api/reference/v202511/LabelService.NotNullError) [LineItemCreativeAssociationService](https://developers.google.com/ad-manager/api/reference/v202511/LineItemCreativeAssociationService.NotNullError) [LineItemService](https://developers.google.com/ad-manager/api/reference/v202511/LineItemService.NotNullError) [LineItemTemplateService](https://developers.google.com/ad-manager/api/reference/v202511/LineItemTemplateService.NotNullError) [LiveStreamEventService](https://developers.google.com/ad-manager/api/reference/v202511/LiveStreamEventService.NotNullError) **MobileApplicationService** [NativeStyleService](https://developers.google.com/ad-manager/api/reference/v202511/NativeStyleService.NotNullError) [NetworkService](https://developers.google.com/ad-manager/api/reference/v202511/NetworkService.NotNullError) [OrderService](https://developers.google.com/ad-manager/api/reference/v202511/OrderService.NotNullError) [PlacementService](https://developers.google.com/ad-manager/api/reference/v202511/PlacementService.NotNullError) [ProposalLineItemService](https://developers.google.com/ad-manager/api/reference/v202511/ProposalLineItemService.NotNullError) [ProposalService](https://developers.google.com/ad-manager/api/reference/v202511/ProposalService.NotNullError) [PublisherQueryLanguageService](https://developers.google.com/ad-manager/api/reference/v202511/PublisherQueryLanguageService.NotNullError) [ReportService](https://developers.google.com/ad-manager/api/reference/v202511/ReportService.NotNullError) [SegmentPopulationService](https://developers.google.com/ad-manager/api/reference/v202511/SegmentPopulationService.NotNullError) [SiteService](https://developers.google.com/ad-manager/api/reference/v202511/SiteService.NotNullError) [StreamActivityMonitorService](https://developers.google.com/ad-manager/api/reference/v202511/StreamActivityMonitorService.NotNullError) [SuggestedAdUnitService](https://developers.google.com/ad-manager/api/reference/v202511/SuggestedAdUnitService.NotNullError) [TargetingPresetService](https://developers.google.com/ad-manager/api/reference/v202511/TargetingPresetService.NotNullError) [TeamService](https://developers.google.com/ad-manager/api/reference/v202511/TeamService.NotNullError) [UserService](https://developers.google.com/ad-manager/api/reference/v202511/UserService.NotNullError) [UserTeamAssociationService](https://developers.google.com/ad-manager/api/reference/v202511/UserTeamAssociationService.NotNullError) [YieldGroupService](https://developers.google.com/ad-manager/api/reference/v202511/YieldGroupService.NotNullError) **Inheritance** [ApiError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.ApiError) ▼ [ApiVersionError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.ApiVersionError) [AuthenticationError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.AuthenticationError) [CollectionSizeError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.CollectionSizeError) [CommonError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.CommonError) [FeatureError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.FeatureError) [InternalApiError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.InternalApiError) [MobileApplicationActionError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.MobileApplicationActionError) [MobileApplicationError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.MobileApplicationError) **NotNullError** [NullError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.NullError) [ParseError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.ParseError) [PermissionError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.PermissionError) [PublisherQueryLanguageConte...](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.PublisherQueryLanguageContextError "PublisherQueryLanguageContextError") [PublisherQueryLanguageSynta...](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.PublisherQueryLanguageSyntaxError "PublisherQueryLanguageSyntaxError") [QuotaError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.QuotaError) [RequiredCollectionError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.RequiredCollectionError) [RequiredError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.RequiredError) [ServerError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.ServerError) [StatementError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.StatementError) [StringFormatError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.StringFormatError) [StringLengthError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.StringLengthError) [UniqueError](https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.UniqueError)

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

*** ** * ** ***

Namespace
:
    `https://www.google.com/apis/ads/publisher/v202511`

| ## Field ||
|---|---|
| **`ApiError` (inherited)** ||
| ### `fieldPath` | ` xsd:string` The OGNL field path to identify cause of error. |
| ### `fieldPathElements` | ` https://developers.google.com/ad-manager/api/reference/v202511/MobileApplicationService.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/v202511/MobileApplicationService.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 /> |