# 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](https://developers.google.com/ad-manager/api/reference/v202602/ProposalService.NotNullError) [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** [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/UserService.ApiError) ▼ [ApiVersionError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.ApiVersionError) [AuthenticationError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.AuthenticationError) [CollectionSizeError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.CollectionSizeError) [CommonError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.CommonError) [CustomFieldValueError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.CustomFieldValueError) [EntityLimitReachedError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.EntityLimitReachedError) [FeatureError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.FeatureError) [InternalApiError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.InternalApiError) [InvalidEmailError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.InvalidEmailError) **NotNullError** [ParseError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.ParseError) [PermissionError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.PermissionError) [PublisherQueryLanguageConte...](https://developers.google.com/ad-manager/api/reference/v202602/UserService.PublisherQueryLanguageContextError "PublisherQueryLanguageContextError") [PublisherQueryLanguageSynta...](https://developers.google.com/ad-manager/api/reference/v202602/UserService.PublisherQueryLanguageSyntaxError "PublisherQueryLanguageSyntaxError") [QuotaError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.QuotaError) [RequiredCollectionError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.RequiredCollectionError) [RequiredError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.RequiredError) [ServerError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.ServerError) [StatementError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.StatementError) [StringFormatError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.StringFormatError) [StringLengthError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.StringLengthError) [TeamError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.TeamError) [TimeZoneError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.TimeZoneError) [TokenError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.TokenError) [TypeError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.TypeError) [UniqueError](https://developers.google.com/ad-manager/api/reference/v202602/UserService.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/UserService.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/UserService.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 /> |