AI-generated Key Takeaways
- 
          Technology Targeting Errors relate to validation issues with technology targeting in services like ProposalLineItemService. 
- 
          These errors are inherited from ApiError and include fields like fieldPath, trigger, and errorString. 
- 
          Specific reasons for Technology Targeting Errors include invalid targeting criteria for mobile or web line items and disabled targeting features for mobile carriers or device capabilities. 
Technology targeting validation errors.
- 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. | 
| TechnologyTargetingError | |
| 
                            | 
                            
 Enumerations 
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