AI-generated Key Takeaways
- 
          The document provides a list of various services available within the Google Ad Manager API, version v202508. 
- 
          Each listed service links to its specific documentation for FeatureError.Reason.
- 
          FeatureError.Reasonis an enumeration with two possible values:MISSING_FEATUREandUNKNOWN.
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          MISSING_FEATUREindicates a feature is not enabled on the current network, whileUNKNOWNis a placeholder for unexposed API values.
- 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. |