AI-generated Key Takeaways
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The content lists all errors specifically associated with custom creatives in the context of ad management.
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Custom creative errors can include issues with duplicate macro names, missing or unrecognized macros, or duplicate assets within macros.
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The errors listed also cover a wide range of general API errors and service-specific errors related to creative and creative set services, as well as line item creative associations.
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Detailed fields such as
fieldPath,trigger, andreasonare available for diagnosing the cause of an error. 
Lists all errors associated with custom creatives.
- 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.  | 
                  
                        
                           CustomCreativeError
                        
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                         The error reason represented by an enum. Enumerations 
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