AI-generated Key Takeaways
- 
          
The content lists various Ad Manager API services with links to their respective
ApiVersionError.Reasondocumentation for version v202508. - 
          
The
ApiVersionError.Reasonenumeration includesUPDATE_TO_NEWER_VERSIONandUNKNOWNas possible reasons for API version errors. - 
          
UPDATE_TO_NEWER_VERSIONsignifies that the attempted operation is not permitted in the API version used for the request. - 
          
UNKNOWNindicates that the actual error value is not accessible in the requested API version. 
- 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. |