AI-generated Key Takeaways
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          The content lists various Ad Manager API services with links to their FeatureError documentation for version v202502. 
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          It outlines the inheritance structure, showing that several specific error types, including FeatureError, inherit from ApiError. 
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          The FeatureErrortype has areasonfield which is an enumeration indicating why a feature error occurred.
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          The possible reasons for a FeatureError are MISSING_FEATUREandUNKNOWN.
- Namespace
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               https://www.google.com/apis/ads/publisher/v202502
| Field | |
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| ApiError(inherited) | |
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| FeatureError | |
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 Enumerations 
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