AI-generated Key Takeaways
- 
          
The page lists various Ad Manager API services with links to their ApplicationException.
 - 
          
The
DaiAuthenticationKeyServiceis highlighted among the listed services. - 
          
The page shows the inheritance relationship where
ApiExceptionis the base class for exceptions andApplicationExceptioninherits from it. - 
          
The
ApplicationExceptionhas amessagefield of typexsd:stringthat provides an error message. 
Base class for exceptions.
- Namespace
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https://www.google.com/apis/ads/publisher/v202508 
                        Field | 
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|---|---|
                        
                           
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                            Error message.  |