AI-generated Key Takeaways
- 
          
The document provides a list of services within the Ad Manager API, each linked to its documentation.
 - 
          
It defines the
ApiVersionError.Reasonenumeration, which includesUPDATE_TO_NEWER_VERSIONandUNKNOWNvalues. - 
          
The
UPDATE_TO_NEWER_VERSIONreason indicates an operation is not allowed in the current API version. - 
          
The
UNKNOWNreason is used when the actual value of an enumeration is not exposed by 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. |