AI-generated Key Takeaways
- 
          The provided content lists numerous services available in the Ad Manager API, covering areas like ad rules, inventory, reports, and user management. 
- 
          It details the AuthenticationError, which occurs during authentication failures and inherits fromApiError.
- 
          The AuthenticationErrorincludes fields likefieldPath,trigger, anderrorStringfromApiError, and a specificreasonfield.
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          The reasonfield of theAuthenticationErrorenumerates various causes for authentication failure, such as invalid login, missing tokens, or network issues.
An error for an exception that occurred when authenticating.
- Namespace
- 
               https://www.google.com/apis/ads/publisher/v202508
| Field | |
|---|---|
| ApiError(inherited) | |
| 
                            | 
                            The OGNL field path to identify cause of error. | 
| 
                            | A parsed copy of the field path. For example, the field path "operations[1].operand" corresponds to this list: {FieldPathElement(field = "operations", index = 1), FieldPathElement(field = "operand", index = null)}. | 
| 
                            | 
                            The data that caused the error. | 
| 
                            | 
                            A simple string representation of the error and reason. | 
| AuthenticationError | |
| 
                            | 
 Enumerations 
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