AI-generated Key Takeaways
- 
          
User domain targeting errors can occur in various Ad Manager services like AdjustmentService, ForecastService, and LineItemService.
 - 
          
An
INVALID_DOMAIN_NAMESerror indicates domain names exceed 67 characters or contain invalid characters. - 
          
An
UNKNOWNerror signifies the actual value is not exposed in the requested API version. 
            ApiErrorReason enum for user domain targeting error.
- Namespace
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https://www.google.com/apis/ads/publisher/v202508 
| Enumeration | Description | 
|---|---|
                        INVALID_DOMAIN_NAMES
                      | 
                     Invalid domain names. Domain names must be at most 67 characters long. And must contain only alphanumeric characters and hyphens. | 
                        UNKNOWN
                      | 
                     The value returned if the actual value is not exposed by the requested API version. |