**Service** [AdRuleService](https://developers.google.com/ad-manager/api/reference/v202605/AdRuleService.RequiredNumberError) [CompanyService](https://developers.google.com/ad-manager/api/reference/v202605/CompanyService.RequiredNumberError) [ContentService](https://developers.google.com/ad-manager/api/reference/v202605/ContentService.RequiredNumberError) [CreativeService](https://developers.google.com/ad-manager/api/reference/v202605/CreativeService.RequiredNumberError) [CreativeSetService](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.RequiredNumberError) [CreativeTemplateService](https://developers.google.com/ad-manager/api/reference/v202605/CreativeTemplateService.RequiredNumberError) [ForecastService](https://developers.google.com/ad-manager/api/reference/v202605/ForecastService.RequiredNumberError) **InventoryService** [LineItemCreativeAssociationService](https://developers.google.com/ad-manager/api/reference/v202605/LineItemCreativeAssociationService.RequiredNumberError) [LineItemService](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.RequiredNumberError) [LineItemTemplateService](https://developers.google.com/ad-manager/api/reference/v202605/LineItemTemplateService.RequiredNumberError) [LiveStreamEventService](https://developers.google.com/ad-manager/api/reference/v202605/LiveStreamEventService.RequiredNumberError) [NetworkService](https://developers.google.com/ad-manager/api/reference/v202605/NetworkService.RequiredNumberError) [OrderService](https://developers.google.com/ad-manager/api/reference/v202605/OrderService.RequiredNumberError) [ProposalLineItemService](https://developers.google.com/ad-manager/api/reference/v202605/ProposalLineItemService.RequiredNumberError) [ProposalService](https://developers.google.com/ad-manager/api/reference/v202605/ProposalService.RequiredNumberError) [PublisherQueryLanguageService](https://developers.google.com/ad-manager/api/reference/v202605/PublisherQueryLanguageService.RequiredNumberError) [YieldGroupService](https://developers.google.com/ad-manager/api/reference/v202605/YieldGroupService.RequiredNumberError) **Inheritance** [ApiError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.ApiError) ▼ [AdSenseAccountError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.AdSenseAccountError) [AdUnitCodeError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.AdUnitCodeError) [AdUnitHierarchyError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.AdUnitHierarchyError) [ApiVersionError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.ApiVersionError) [AuthenticationError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.AuthenticationError) [CollectionSizeError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.CollectionSizeError) [CommonError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.CommonError) [CompanyError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.CompanyError) [CreativeWrapperError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.CreativeWrapperError) [CrossSellError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.CrossSellError) [EntityChildrenLimitReachedE...](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.EntityChildrenLimitReachedError "EntityChildrenLimitReachedError") [EntityLimitReachedError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.EntityLimitReachedError) [FeatureError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.FeatureError) [FrequencyCapError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.FrequencyCapError) [InternalApiError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.InternalApiError) [InvalidColorError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.InvalidColorError) [InvalidUrlError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.InvalidUrlError) [InventoryUnitError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.InventoryUnitError) [InventoryUnitRefreshRateError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.InventoryUnitRefreshRateError) [InventoryUnitSizesError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.InventoryUnitSizesError) [LabelEntityAssociationError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.LabelEntityAssociationError) [NotNullError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.NotNullError) [NullError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.NullError) [ParseError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.ParseError) [PermissionError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.PermissionError) [PublisherQueryLanguageConte...](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.PublisherQueryLanguageContextError "PublisherQueryLanguageContextError") [PublisherQueryLanguageSynta...](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.PublisherQueryLanguageSyntaxError "PublisherQueryLanguageSyntaxError") [QuotaError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.QuotaError) [RangeError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.RangeError) [RegExError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.RegExError) [RequiredCollectionError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.RequiredCollectionError) [RequiredError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.RequiredError) **RequiredNumberError** [ServerError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.ServerError) [StatementError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.StatementError) [StringFormatError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.StringFormatError) [StringLengthError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.StringLengthError) [TeamError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.TeamError) [TypeError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.TypeError) [UniqueError](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.UniqueError)

A list of all errors to be used in conjunction with required number
validators.

*** ** * ** ***

Namespace
:
    `https://www.google.com/apis/ads/publisher/v202605`

| ## Field ||
|---|---|
| **`ApiError` (inherited)** ||
| ### `fieldPath` | ` xsd:string` The OGNL field path to identify cause of error. |
| ### `fieldPathElements` | ` https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.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. |
| **`RequiredNumberError`** ||
| ### `reason` | ` https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.RequiredNumberError.Reason ` *** ** * ** *** **Enumerations** `REQUIRED` : `TOO_LARGE` : `TOO_SMALL` : `TOO_LARGE_WITH_DETAILS` : `TOO_SMALL_WITH_DETAILS` : `UNKNOWN` :   The value returned if the actual value is not exposed by the requested API version. <br /> |