AI-generated Key Takeaways
- 
          The content lists numerous Ad Manager API services with links to their FeatureError.Reason documentation for version v202508. 
- 
          Each listed service includes a link pointing to details about potential FeatureError.Reason instances, specifically related to features not enabled on the network. 
- 
          The FeatureError.Reasonenumeration indicates why a feature error occurred, withMISSING_FEATUREandUNKNOWNbeing the defined reasons.
- Namespace
- 
               https://www.google.com/apis/ads/publisher/v202508
| Enumeration | Description | 
|---|---|
| MISSING_FEATURE | A feature is being used that is not enabled on the current network. | 
| UNKNOWN | The value returned if the actual value is not exposed by the requested API version. |