AI-generated Key Takeaways
- 
          GrpSettingsError represents errors related to line items with GRP settings within the Ad Manager API. 
- 
          This error inherits from ApiError, providing common fields for identifying the error cause such as fieldPath, fieldPathElements, trigger, and errorString. 
- 
          The GrpSettingsError includes a 'reason' field, which uses an enumeration to specify various causes for the error, such as invalid age ranges, unsupported line item types, or issues with Nielsen integration. 
- 
          GRP settings are primarily supported for video line items, and certain configurations like age ranges and gender specifications have specific validity rules. 
- 
          Once a line item with GRP settings starts serving, certain attributes like the GRP provider and settings cannot be changed. 
Errors associated with line items with GRP settings.
- Namespace
- 
               https://www.google.com/apis/ads/publisher/v202505
| 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. | 
| GrpSettingsError | |
| 
                            | The error reason represented by an enum. Enumerations 
 |