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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-13 UTC."],[],[],null,["# type CustomFieldError (v202508)\n\n**Service** \n**CustomFieldService** **Inheritance** \n[ApiError](/ad-manager/api/reference/v202508/CustomFieldService.ApiError) \n▼\n[ApiVersionError](/ad-manager/api/reference/v202508/CustomFieldService.ApiVersionError) [AuthenticationError](/ad-manager/api/reference/v202508/CustomFieldService.AuthenticationError) [CollectionSizeError](/ad-manager/api/reference/v202508/CustomFieldService.CollectionSizeError) [CommonError](/ad-manager/api/reference/v202508/CustomFieldService.CommonError) **CustomFieldError** [EntityLimitReachedError](/ad-manager/api/reference/v202508/CustomFieldService.EntityLimitReachedError) [FeatureError](/ad-manager/api/reference/v202508/CustomFieldService.FeatureError) [InternalApiError](/ad-manager/api/reference/v202508/CustomFieldService.InternalApiError) [NotNullError](/ad-manager/api/reference/v202508/CustomFieldService.NotNullError) [NullError](/ad-manager/api/reference/v202508/CustomFieldService.NullError) [ParseError](/ad-manager/api/reference/v202508/CustomFieldService.ParseError) [PermissionError](/ad-manager/api/reference/v202508/CustomFieldService.PermissionError) [PublisherQueryLanguageConte...](/ad-manager/api/reference/v202508/CustomFieldService.PublisherQueryLanguageContextError \"PublisherQueryLanguageContextError\") [PublisherQueryLanguageSynta...](/ad-manager/api/reference/v202508/CustomFieldService.PublisherQueryLanguageSyntaxError \"PublisherQueryLanguageSyntaxError\") [QuotaError](/ad-manager/api/reference/v202508/CustomFieldService.QuotaError) [RequiredCollectionError](/ad-manager/api/reference/v202508/CustomFieldService.RequiredCollectionError) [RequiredError](/ad-manager/api/reference/v202508/CustomFieldService.RequiredError) [ServerError](/ad-manager/api/reference/v202508/CustomFieldService.ServerError) [StatementError](/ad-manager/api/reference/v202508/CustomFieldService.StatementError) [StringFormatError](/ad-manager/api/reference/v202508/CustomFieldService.StringFormatError) [StringLengthError](/ad-manager/api/reference/v202508/CustomFieldService.StringLengthError) [TypeError](/ad-manager/api/reference/v202508/CustomFieldService.TypeError) [UniqueError](/ad-manager/api/reference/v202508/CustomFieldService.UniqueError)\n\nErrors specific to editing custom fields\n\n*** ** * ** ***\n\nNamespace\n:\n `https://www.google.com/apis/ads/publisher/v202508`\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/v202508/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| **`CustomFieldError`** ||\n| ### `reason` | ` `[CustomFieldError.Reason](/ad-manager/api/reference/v202508/CustomFieldService.CustomFieldError.Reason)` ` The error reason represented by an enum. *** ** * ** *** **Enumerations** `INVALID_CUSTOM_FIELD_FOR_OPTION` : An attempt was made to create a [CustomFieldOption](/ad-manager/api/reference/v202508/CustomFieldService.CustomFieldOption) for a [CustomField](/ad-manager/api/reference/v202508/CustomFieldService.CustomField) that does not have [CustomFieldDataType.DROPDOWN](/ad-manager/api/reference/v202508/CustomFieldService.CustomFieldDataType#DROPDOWN). `UNKNOWN` : The value returned if the actual value is not exposed by the requested API version. \u003cbr /\u003e |"]]
