AI-generated Key Takeaways
- 
          The ContactService provides access to various functionalities related to contacts within the API. 
- 
          The service utilizes ApplicationExceptionas a base class for its exceptions.
- 
          Exceptions within the ContactService inherit from the ApiExceptionclass.
- 
          The messagefield within theApplicationExceptionprovides a string detailing the error.
Base class for exceptions.
- Namespace
- 
               https://www.google.com/apis/ads/publisher/v202505
| Field | |
|---|---|
| 
                            | 
                            Error message. |