AI-generated Key Takeaways
- 
          CommonError provides a place for errors that can be used across various services within the Ad Manager API. 
- 
          This error type inherits from ApiError and includes fields like fieldPath, fieldPathElements, trigger, and errorString. 
- 
          The CommonError specifically includes a reasonfield which indicates the cause of the error through various enumerations such as NOT_FOUND, ALREADY_EXISTS, and UNSUPPORTED_OPERATION.
- 
          Reasons for a CommonError can include attempting to retrieve a non-existent entity, creating a duplicate entity, or attempting to modify an immutable field. 
- 
          Other possible reasons for a CommonError are concurrent modifications, requests that are too large, or unsupported operations. 
A place for common errors that can be used across services.
- 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. | 
| CommonError | |
| 
                            | 
 Enumerations 
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