AI-generated Key Takeaways
- 
          The page details various services available, including AdjustmentService, CompanyService, and CreativeService. 
- 
          It provides information on the inheritance hierarchy, showing that many errors, such as AdSenseAccountError and AdUnitCodeError, inherit from ApiError. 
- 
          The NullError specifically indicates errors related to the violation of a NOT NULL check within the system. 
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          Details about the NullError include inherited fields like fieldPathandtrigger, as well as its specificreasonenumeration.
Errors associated with violation of a NOT NULL check.
- 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. | 
| NullError | |
| 
                            | The error reason represented by an enum. Enumerations 
 |