AI-generated Key Takeaways
- 
          The document provides a list of various Ad Manager API services, each linked to its FeatureError.Reasonreference.
- 
          It details the FeatureError.Reasonenumeration, which explains why a feature error might occur, includingMISSING_FEATUREandUNKNOWN.
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          The FeatureError.Reasonenumeration indicates if a feature is not enabled on the current network or if the value is not exposed by the requested API version.
- 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. |