**Service** [AdRuleService](https://developers.google.com/ad-manager/api/reference/v202605/AdRuleService.AuthenticationError.Reason) [AdjustmentService](https://developers.google.com/ad-manager/api/reference/v202605/AdjustmentService.AuthenticationError.Reason) [AdsTxtService](https://developers.google.com/ad-manager/api/reference/v202605/AdsTxtService.AuthenticationError.Reason) [AudienceSegmentService](https://developers.google.com/ad-manager/api/reference/v202605/AudienceSegmentService.AuthenticationError.Reason) [CdnConfigurationService](https://developers.google.com/ad-manager/api/reference/v202605/CdnConfigurationService.AuthenticationError.Reason) [CmsMetadataService](https://developers.google.com/ad-manager/api/reference/v202605/CmsMetadataService.AuthenticationError.Reason) [CompanyService](https://developers.google.com/ad-manager/api/reference/v202605/CompanyService.AuthenticationError.Reason) [ContactService](https://developers.google.com/ad-manager/api/reference/v202605/ContactService.AuthenticationError.Reason) [ContentBundleService](https://developers.google.com/ad-manager/api/reference/v202605/ContentBundleService.AuthenticationError.Reason) [ContentService](https://developers.google.com/ad-manager/api/reference/v202605/ContentService.AuthenticationError.Reason) [CreativeService](https://developers.google.com/ad-manager/api/reference/v202605/CreativeService.AuthenticationError.Reason) [CreativeSetService](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.AuthenticationError.Reason) [CreativeTemplateService](https://developers.google.com/ad-manager/api/reference/v202605/CreativeTemplateService.AuthenticationError.Reason) [CreativeWrapperService](https://developers.google.com/ad-manager/api/reference/v202605/CreativeWrapperService.AuthenticationError.Reason) [CustomFieldService](https://developers.google.com/ad-manager/api/reference/v202605/CustomFieldService.AuthenticationError.Reason) [CustomTargetingService](https://developers.google.com/ad-manager/api/reference/v202605/CustomTargetingService.AuthenticationError.Reason) [DaiAuthenticationKeyService](https://developers.google.com/ad-manager/api/reference/v202605/DaiAuthenticationKeyService.AuthenticationError.Reason) [DaiEncodingProfileService](https://developers.google.com/ad-manager/api/reference/v202605/DaiEncodingProfileService.AuthenticationError.Reason) [ForecastService](https://developers.google.com/ad-manager/api/reference/v202605/ForecastService.AuthenticationError.Reason) [InventoryService](https://developers.google.com/ad-manager/api/reference/v202605/InventoryService.AuthenticationError.Reason) [LabelService](https://developers.google.com/ad-manager/api/reference/v202605/LabelService.AuthenticationError.Reason) [LineItemCreativeAssociationService](https://developers.google.com/ad-manager/api/reference/v202605/LineItemCreativeAssociationService.AuthenticationError.Reason) [LineItemService](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.AuthenticationError.Reason) [LineItemTemplateService](https://developers.google.com/ad-manager/api/reference/v202605/LineItemTemplateService.AuthenticationError.Reason) [LiveStreamEventService](https://developers.google.com/ad-manager/api/reference/v202605/LiveStreamEventService.AuthenticationError.Reason) [MobileApplicationService](https://developers.google.com/ad-manager/api/reference/v202605/MobileApplicationService.AuthenticationError.Reason) [NativeStyleService](https://developers.google.com/ad-manager/api/reference/v202605/NativeStyleService.AuthenticationError.Reason) [NetworkService](https://developers.google.com/ad-manager/api/reference/v202605/NetworkService.AuthenticationError.Reason) [OrderService](https://developers.google.com/ad-manager/api/reference/v202605/OrderService.AuthenticationError.Reason) [PlacementService](https://developers.google.com/ad-manager/api/reference/v202605/PlacementService.AuthenticationError.Reason) [ProposalLineItemService](https://developers.google.com/ad-manager/api/reference/v202605/ProposalLineItemService.AuthenticationError.Reason) [ProposalService](https://developers.google.com/ad-manager/api/reference/v202605/ProposalService.AuthenticationError.Reason) [PublisherQueryLanguageService](https://developers.google.com/ad-manager/api/reference/v202605/PublisherQueryLanguageService.AuthenticationError.Reason) [ReportService](https://developers.google.com/ad-manager/api/reference/v202605/ReportService.AuthenticationError.Reason) [SegmentPopulationService](https://developers.google.com/ad-manager/api/reference/v202605/SegmentPopulationService.AuthenticationError.Reason) [SiteService](https://developers.google.com/ad-manager/api/reference/v202605/SiteService.AuthenticationError.Reason) [StreamActivityMonitorService](https://developers.google.com/ad-manager/api/reference/v202605/StreamActivityMonitorService.AuthenticationError.Reason) [SuggestedAdUnitService](https://developers.google.com/ad-manager/api/reference/v202605/SuggestedAdUnitService.AuthenticationError.Reason) [TargetingPresetService](https://developers.google.com/ad-manager/api/reference/v202605/TargetingPresetService.AuthenticationError.Reason) [TeamService](https://developers.google.com/ad-manager/api/reference/v202605/TeamService.AuthenticationError.Reason) [UserService](https://developers.google.com/ad-manager/api/reference/v202605/UserService.AuthenticationError.Reason) **UserTeamAssociationService** [YieldGroupService](https://developers.google.com/ad-manager/api/reference/v202605/YieldGroupService.AuthenticationError.Reason) **Dependencies** [AuthenticationError](https://developers.google.com/ad-manager/api/reference/v202605/UserTeamAssociationService.AuthenticationError) ▼ **AuthenticationError.Reason**

*** ** * ** ***

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

| Enumeration | Description |
|---|---|
| `AMBIGUOUS_SOAP_REQUEST_HEADER` | The SOAP message contains a request header with an ambiguous definition of the authentication header fields. This means either the `authToken` and `oAuthToken` fields were both null or both were specified. Exactly one value should be specified with each request. |
| `INVALID_EMAIL` | The login provided is invalid. |
| `AUTHENTICATION_FAILED` | Tried to authenticate with provided information, but failed. |
| `INVALID_OAUTH_SIGNATURE` | The OAuth provided is invalid. |
| `INVALID_SERVICE` | The specified service to use was not recognized. |
| `MISSING_SOAP_REQUEST_HEADER` | The SOAP message is missing a request header with an `authToken` and optional `networkCode`. |
| `MISSING_AUTHENTICATION_HTTP_HEADER` | The HTTP request is missing a request header with an `authToken` |
| `MISSING_AUTHENTICATION` | The request is missing an `authToken` |
| `NETWORK_API_ACCESS_DISABLED` | The network does not have API access enabled. |
| `NO_NETWORKS_TO_ACCESS` | The user is not associated with any network. |
| `NETWORK_NOT_FOUND` | No network for the given `networkCode` was found. |
| `NETWORK_CODE_REQUIRED` | The user has access to more than one network, but did not provide a `networkCode`. |
| `CONNECTION_ERROR` | An error happened on the server side during connection to authentication service. |
| `GOOGLE_ACCOUNT_ALREADY_ASSOCIATED_WITH_NETWORK` | The user tried to create a test network using an account that already is associated with a network. |
| `UNDER_INVESTIGATION` | The account is blocked and under investigation by the collections team. Please contact Google for more information. |
| `UNKNOWN` | The value returned if the actual value is not exposed by the requested API version. |