AI-generated Key Takeaways
- 
          The document provides a list of services within the Ad Manager API, including links to their respective ApiVersionError.Reasondocumentation for version v202508.
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          ApiVersionError.Reasonis an enumeration with two possible values:UPDATE_TO_NEWER_VERSIONandUNKNOWN.
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          The UPDATE_TO_NEWER_VERSIONreason indicates that the attempted operation is not permitted in the API version used for the request.
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          The UNKNOWNreason is returned when the actual value of an enumeration is not exposed by the specific API version requested.
- Namespace
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               https://www.google.com/apis/ads/publisher/v202508
| Enumeration | Description | 
|---|---|
| UPDATE_TO_NEWER_VERSION | Indicates that the operation is not allowed in the version the request was made in. | 
| UNKNOWN | The value returned if the actual value is not exposed by the requested API version. |