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.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-06 UTC."],[[["\u003cp\u003eThe \u003ccode\u003eNullError\u003c/code\u003e is thrown when a NOT NULL constraint is violated.\u003c/p\u003e\n"],["\u003cp\u003eThis error is specific to Google Ad Manager and occurs within the \u003ccode\u003eCustomFieldService\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eIt typically arises when a required field is missing or a list contains null elements.\u003c/p\u003e\n"],["\u003cp\u003eThe error details include the specific reason (\u003ccode\u003ereason\u003c/code\u003e), field path (\u003ccode\u003efieldPath\u003c/code\u003e), and trigger (\u003ccode\u003etrigger\u003c/code\u003e).\u003c/p\u003e\n"],["\u003cp\u003eRefer to the namespace and inheritance sections for additional context and hierarchy.\u003c/p\u003e\n"]]],["The document outlines various services within an ad management system, including Adjustment, Company, Creative, CustomField, and many more. It details the `NullError`, which indicates a violation of a NOT NULL check. This error, inheriting from `ApiError`, includes fields like `fieldPath`, `trigger`, and `errorString`. `NullError` specifies a `reason`, which can be `NULL_CONTENT`, indicating that a list or container must not contain null elements. The services and error types are in the namespace `https://www.google.com/apis/ads/publisher/v202408`.\n"],null,["# type NullError (v202408)\n\n**Service** \n[AdjustmentService](/ad-manager/api/reference/v202408/AdjustmentService.NullError) [CompanyService](/ad-manager/api/reference/v202408/CompanyService.NullError) [CreativeService](/ad-manager/api/reference/v202408/CreativeService.NullError) [CreativeSetService](/ad-manager/api/reference/v202408/CreativeSetService.NullError) [CreativeTemplateService](/ad-manager/api/reference/v202408/CreativeTemplateService.NullError) [CreativeWrapperService](/ad-manager/api/reference/v202408/CreativeWrapperService.NullError) **CustomFieldService** [CustomTargetingService](/ad-manager/api/reference/v202408/CustomTargetingService.NullError) [DaiEncodingProfileService](/ad-manager/api/reference/v202408/DaiEncodingProfileService.NullError) [ForecastService](/ad-manager/api/reference/v202408/ForecastService.NullError) [InventoryService](/ad-manager/api/reference/v202408/InventoryService.NullError) [LabelService](/ad-manager/api/reference/v202408/LabelService.NullError) [LineItemCreativeAssociationService](/ad-manager/api/reference/v202408/LineItemCreativeAssociationService.NullError) [LineItemService](/ad-manager/api/reference/v202408/LineItemService.NullError) [LineItemTemplateService](/ad-manager/api/reference/v202408/LineItemTemplateService.NullError) [LiveStreamEventService](/ad-manager/api/reference/v202408/LiveStreamEventService.NullError) [MobileApplicationService](/ad-manager/api/reference/v202408/MobileApplicationService.NullError) [NativeStyleService](/ad-manager/api/reference/v202408/NativeStyleService.NullError) [OrderService](/ad-manager/api/reference/v202408/OrderService.NullError) [PlacementService](/ad-manager/api/reference/v202408/PlacementService.NullError) [ProposalService](/ad-manager/api/reference/v202408/ProposalService.NullError) [PublisherQueryLanguageService](/ad-manager/api/reference/v202408/PublisherQueryLanguageService.NullError) [SiteService](/ad-manager/api/reference/v202408/SiteService.NullError) [TeamService](/ad-manager/api/reference/v202408/TeamService.NullError) [UserTeamAssociationService](/ad-manager/api/reference/v202408/UserTeamAssociationService.NullError) **Inheritance** \n[ApiError](/ad-manager/api/reference/v202408/CustomFieldService.ApiError) \n▼\n[ApiVersionError](/ad-manager/api/reference/v202408/CustomFieldService.ApiVersionError) [AuthenticationError](/ad-manager/api/reference/v202408/CustomFieldService.AuthenticationError) [CollectionSizeError](/ad-manager/api/reference/v202408/CustomFieldService.CollectionSizeError) [CommonError](/ad-manager/api/reference/v202408/CustomFieldService.CommonError) [CustomFieldError](/ad-manager/api/reference/v202408/CustomFieldService.CustomFieldError) [EntityLimitReachedError](/ad-manager/api/reference/v202408/CustomFieldService.EntityLimitReachedError) [FeatureError](/ad-manager/api/reference/v202408/CustomFieldService.FeatureError) [InternalApiError](/ad-manager/api/reference/v202408/CustomFieldService.InternalApiError) [NotNullError](/ad-manager/api/reference/v202408/CustomFieldService.NotNullError) **NullError** [ParseError](/ad-manager/api/reference/v202408/CustomFieldService.ParseError) [PermissionError](/ad-manager/api/reference/v202408/CustomFieldService.PermissionError) [PublisherQueryLanguageConte...](/ad-manager/api/reference/v202408/CustomFieldService.PublisherQueryLanguageContextError \"PublisherQueryLanguageContextError\") [PublisherQueryLanguageSynta...](/ad-manager/api/reference/v202408/CustomFieldService.PublisherQueryLanguageSyntaxError \"PublisherQueryLanguageSyntaxError\") [QuotaError](/ad-manager/api/reference/v202408/CustomFieldService.QuotaError) [RequiredCollectionError](/ad-manager/api/reference/v202408/CustomFieldService.RequiredCollectionError) [RequiredError](/ad-manager/api/reference/v202408/CustomFieldService.RequiredError) [ServerError](/ad-manager/api/reference/v202408/CustomFieldService.ServerError) [StatementError](/ad-manager/api/reference/v202408/CustomFieldService.StatementError) [StringFormatError](/ad-manager/api/reference/v202408/CustomFieldService.StringFormatError) [StringLengthError](/ad-manager/api/reference/v202408/CustomFieldService.StringLengthError) [TypeError](/ad-manager/api/reference/v202408/CustomFieldService.TypeError) [UniqueError](/ad-manager/api/reference/v202408/CustomFieldService.UniqueError)\n\nErrors associated with violation of a NOT NULL check.\n\n*** ** * ** ***\n\nNamespace\n:\n `https://www.google.com/apis/ads/publisher/v202408`\n\n| Field ----- ||\n|-------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| **`ApiError` (inherited)** ||\n| ### `fieldPath` | ` `xsd:`string` The OGNL field path to identify cause of error. |\n| ### `fieldPathElements` | ` `[FieldPathElement](/ad-manager/api/reference/v202408/CustomFieldService.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)}. |\n| ### `trigger` | ` `xsd:`string` The data that caused the error. |\n| ### `errorString` | ` `xsd:`string` A simple string representation of the error and reason. |\n| **`NullError`** ||\n| ### `reason` | ` `[NullError.Reason](/ad-manager/api/reference/v202408/CustomFieldService.NullError.Reason)` ` The error reason represented by an enum. *** ** * ** *** **Enumerations** `NULL_CONTENT` : Specified list/container must not contain any null elements \u003cbr /\u003e |"]]