AI-generated Key Takeaways
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AuthenticationError represents an exception that occurs during authentication.
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It inherits fields from ApiError including fieldPath, fieldPathElements, trigger, and errorString.
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AuthenticationError has a specific reason field which is an enumeration listing various causes for authentication failure.
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Possible reasons for AuthenticationError include invalid login, missing or ambiguous authentication tokens, invalid OAuth signature, network access issues, and internal server errors.
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The namespace for AuthenticationError is https://www.google.com/apis/ads/publisher/v202508.
 
An error for an exception that occurred when authenticating.
- Namespace
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https://www.google.com/apis/ads/publisher/v202508 
                        Field | 
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                           ApiError (inherited)
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                            The OGNL field path to identify cause of error.  | 
                  
                        
                           
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                         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)}.  | 
                  
                        
                           
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                            The data that caused the error.  | 
                  
                        
                           
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                            A simple string representation of the error and reason.  | 
                  
                        
                           AuthenticationError
                        
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 Enumerations 
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