AI-generated Key Takeaways
- 
          The content provides documentation for various services, including AdjustmentService, CompanyService, CreativeService, and many others. 
- 
          There is a section detailing the inheritance of errors, starting with ApiError and including specific error types like AuthenticationError, CollectionSizeError, and NullError. 
- 
          The NullError is specifically highlighted as being associated with the violation of a NOT NULL check. 
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          The NullError includes a reasonfield, which is an enumeration indicating the specific cause, such asNULL_CONTENT.
Errors associated with violation of a NOT NULL check.
- Namespace
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               https://www.google.com/apis/ads/publisher/v202502
| 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 
 |