**Service** [AdRuleService](https://developers.google.com/ad-manager/api/reference/v202605/AdRuleService.StringFormatError) [AdjustmentService](https://developers.google.com/ad-manager/api/reference/v202605/AdjustmentService.StringFormatError) [AdsTxtService](https://developers.google.com/ad-manager/api/reference/v202605/AdsTxtService.StringFormatError) [AudienceSegmentService](https://developers.google.com/ad-manager/api/reference/v202605/AudienceSegmentService.StringFormatError) [CdnConfigurationService](https://developers.google.com/ad-manager/api/reference/v202605/CdnConfigurationService.StringFormatError) [CmsMetadataService](https://developers.google.com/ad-manager/api/reference/v202605/CmsMetadataService.StringFormatError) [CompanyService](https://developers.google.com/ad-manager/api/reference/v202605/CompanyService.StringFormatError) [ContactService](https://developers.google.com/ad-manager/api/reference/v202605/ContactService.StringFormatError) [ContentBundleService](https://developers.google.com/ad-manager/api/reference/v202605/ContentBundleService.StringFormatError) [ContentService](https://developers.google.com/ad-manager/api/reference/v202605/ContentService.StringFormatError) [CreativeService](https://developers.google.com/ad-manager/api/reference/v202605/CreativeService.StringFormatError) [CreativeSetService](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.StringFormatError) [CreativeTemplateService](https://developers.google.com/ad-manager/api/reference/v202605/CreativeTemplateService.StringFormatError) [CreativeWrapperService](https://developers.google.com/ad-manager/api/reference/v202605/CreativeWrapperService.StringFormatError) [CustomFieldService](https://developers.google.com/ad-manager/api/reference/v202605/CustomFieldService.StringFormatError) [CustomTargetingService](https://developers.google.com/ad-manager/api/reference/v202605/CustomTargetingService.StringFormatError) [DaiAuthenticationKeyService](https://developers.google.com/ad-manager/api/reference/v202605/DaiAuthenticationKeyService.StringFormatError) [DaiEncodingProfileService](https://developers.google.com/ad-manager/api/reference/v202605/DaiEncodingProfileService.StringFormatError) [ForecastService](https://developers.google.com/ad-manager/api/reference/v202605/ForecastService.StringFormatError) [InventoryService](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.StringFormatError) [LabelService](https://developers.google.com/ad-manager/api/reference/v202605/LabelService.StringFormatError) [LineItemCreativeAssociationService](https://developers.google.com/ad-manager/api/reference/v202605/LineItemCreativeAssociationService.StringFormatError) [LineItemService](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.StringFormatError) [LineItemTemplateService](https://developers.google.com/ad-manager/api/reference/v202605/LineItemTemplateService.StringFormatError) [LiveStreamEventService](https://developers.google.com/ad-manager/api/reference/v202605/LiveStreamEventService.StringFormatError) [MobileApplicationService](https://developers.google.com/ad-manager/api/reference/v202605/MobileApplicationService.StringFormatError) [NativeStyleService](https://developers.google.com/ad-manager/api/reference/v202605/NativeStyleService.StringFormatError) [NetworkService](https://developers.google.com/ad-manager/api/reference/v202605/NetworkService.StringFormatError) [OrderService](https://developers.google.com/ad-manager/api/reference/v202605/OrderService.StringFormatError) [PlacementService](https://developers.google.com/ad-manager/api/reference/v202605/PlacementService.StringFormatError) [ProposalLineItemService](https://developers.google.com/ad-manager/api/reference/v202605/ProposalLineItemService.StringFormatError) [ProposalService](https://developers.google.com/ad-manager/api/reference/v202605/ProposalService.StringFormatError) [PublisherQueryLanguageService](https://developers.google.com/ad-manager/api/reference/v202605/PublisherQueryLanguageService.StringFormatError) [ReportService](https://developers.google.com/ad-manager/api/reference/v202605/ReportService.StringFormatError) **SegmentPopulationService** [SiteService](https://developers.google.com/ad-manager/api/reference/v202605/SiteService.StringFormatError) [StreamActivityMonitorService](https://developers.google.com/ad-manager/api/reference/v202605/StreamActivityMonitorService.StringFormatError) [SuggestedAdUnitService](https://developers.google.com/ad-manager/api/reference/v202605/SuggestedAdUnitService.StringFormatError) [TargetingPresetService](https://developers.google.com/ad-manager/api/reference/v202605/TargetingPresetService.StringFormatError) [TeamService](https://developers.google.com/ad-manager/api/reference/v202605/TeamService.StringFormatError) [UserService](https://developers.google.com/ad-manager/api/reference/v202605/UserService.StringFormatError) [UserTeamAssociationService](https://developers.google.com/ad-manager/api/reference/v202605/UserTeamAssociationService.StringFormatError) [YieldGroupService](https://developers.google.com/ad-manager/api/reference/v202605/YieldGroupService.StringFormatError) **Inheritance** [ApiError](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.ApiError) ▼ [ApiVersionError](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.ApiVersionError) [AuthenticationError](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.AuthenticationError) [CollectionSizeError](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.CollectionSizeError) [CommonError](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.CommonError) [FeatureError](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.FeatureError) [InternalApiError](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.InternalApiError) [NotNullError](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.NotNullError) [ParseError](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.ParseError) [PermissionError](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.PermissionError) [PublisherQueryLanguageConte...](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.PublisherQueryLanguageContextError "PublisherQueryLanguageContextError") [PublisherQueryLanguageSynta...](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.PublisherQueryLanguageSyntaxError "PublisherQueryLanguageSyntaxError") [QuotaError](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.QuotaError) [RequiredCollectionError](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.RequiredCollectionError) [RequiredError](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.RequiredError) [SegmentPopulationError](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.SegmentPopulationError) [ServerError](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.ServerError) **StringFormatError** [StringLengthError](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.StringLengthError)

*** ** * ** ***

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

| ## Field ||
|---|---|
| **`ApiError` (inherited)** ||
| ### `fieldPath` | ` xsd:string` <br /> |
| ### `fieldPathElements` | ` https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.FieldPathElement[]` <br /> |
| ### `trigger` | ` xsd:string` <br /> |
| ### `errorString` | ` xsd:string` <br /> |
| **`StringFormatError`** ||
| ### `reason` | ` https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.StringFormatError.Reason ` *** ** * ** *** **Enumerations** `UNKNOWN` : `ILLEGAL_CHARS` : `INVALID_FORMAT` : <br /> |