AI-generated Key Takeaways
- 
          The LineItemTemplateService is one of many services available for managing ad-related entities, including AdRules, Adjustments, and Inventory. 
- 
          The RequiredErrorwithin the LineItemTemplateService indicates that an error occurred because a required field was missing.
- 
          The RequiredErrorinherits properties fromApiError, includingfieldPath,fieldPathElements,trigger, anderrorString, which provide details about the error.
- 
          The specific reason for a RequiredErroris represented by theRequiredError.Reasonenum, withREQUIREDsignifying a missing required field.
Errors due to missing required field.
- Namespace
- 
               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. | 
| RequiredError | |
| 
                            | The error reason represented by an enum. Enumerations 
 |