AI-generated Key Takeaways
- 
          The content lists numerous Ad Manager API services with links to their FeatureError.Reason documentation for version v202508. 
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          It defines the FeatureError.Reason enumeration, explaining that MISSING_FEATUREindicates a disabled feature on the network andUNKNOWNsignifies an unexposed value in the requested API version.
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          The content primarily serves as a reference to the documentation for FeatureError.Reason across various Ad Manager API services. 
- Namespace
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               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. |