AI-generated Key Takeaways
- 
          AuthenticationError represents an exception that occurs during authentication. 
- 
          It inherits properties from ApiError, including fieldPath, fieldPathElements, trigger, and errorString. 
- 
          AuthenticationError has a specific reason field which is an enumeration listing various causes for authentication failure. 
- 
          Potential reasons for AuthenticationError include invalid login, failed authentication, invalid OAuth, missing headers, and network access issues, among others. 
- 
          The error provides details like the field path and trigger data to help identify the cause of the authentication problem. 
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 
 |