**Service** [ForecastService](https://developers.google.com/ad-manager/api/reference/v202605/ForecastService.MobileApplicationTargetingError.Reason) [LineItemService](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.MobileApplicationTargetingError.Reason) [LineItemTemplateService](https://developers.google.com/ad-manager/api/reference/v202605/LineItemTemplateService.MobileApplicationTargetingError.Reason) **OrderService** [ProposalLineItemService](https://developers.google.com/ad-manager/api/reference/v202605/ProposalLineItemService.MobileApplicationTargetingError.Reason) [TargetingPresetService](https://developers.google.com/ad-manager/api/reference/v202605/TargetingPresetService.MobileApplicationTargetingError.Reason) [YieldGroupService](https://developers.google.com/ad-manager/api/reference/v202605/YieldGroupService.MobileApplicationTargetingError.Reason) **Dependencies** [MobileApplicationTargetingE...](https://developers.google.com/ad-manager/api/reference/v202605/OrderService.MobileApplicationTargetingError "MobileApplicationTargetingError") ▼ **MobileApplicationTargetingE...**


`ApiErrorReason` enum for user domain targeting error.

*** ** * ** ***

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

| Enumeration | Description |
|---|---|
| `CANNOT_TARGET_UNLINKED_APPLICATION` | Only applications that are linked to a store entry may be targeted. |
| `UNKNOWN` | The value returned if the actual value is not exposed by the requested API version. |