AI-generated Key Takeaways
- 
          
The content lists various Ad Manager API services and their corresponding
InternalApiError.Reason. - 
          
The
InternalApiError.Reasonprovides specific causes for internal API errors. - 
          
The possible reasons for internal API errors include unexpected errors, transient errors, unknown issues, planned downtime, and errors generating a response after a successful mutate operation.
 - 
          
The namespace for the
InternalApiError.Reasonenumeration is provided. 
The single reason for the internal API error.
- Namespace
 - 
               
https://www.google.com/apis/ads/publisher/v202508 
| Enumeration | Description | 
|---|---|
                        UNEXPECTED_INTERNAL_API_ERROR
                      | 
                     API encountered an unexpected internal error. | 
                        TRANSIENT_ERROR
                      | 
                     A temporary error occurred during the request. Please retry. | 
                        UNKNOWN
                      | 
                     The cause of the error is not known or only defined in newer versions. | 
                        DOWNTIME
                      | 
                     The API is currently unavailable for a planned downtime. | 
                        ERROR_GENERATING_RESPONSE
                      | 
                     Mutate succeeded but server was unable to build response. Client should not retry mutate. |