AI-generated Key Takeaways
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InventoryTargetingError lists errors related to associating a line item with a targeting expression.
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This error type inherits from ApiError and includes specific details about the field path, trigger, and a simple error string.
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Reasons for InventoryTargetingError include issues like requiring at least one placement or inventory unit, targeting and excluding the same inventory, or targeting a child inventory unit when an ancestor is targeted or excluded.
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Other reasons involve explicitly targeted inventory units, landing page-only ad units, and targeting YouTube audience segments without YouTube shared inventory.
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The namespace for this service is
https://www.google.com/apis/ads/publisher/v202508. 
Lists all inventory errors caused by associating a line item with a targeting expression.
- Namespace
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https://www.google.com/apis/ads/publisher/v202508 
                        Field | 
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                           ApiError (inherited)
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                            The OGNL field path to identify cause of error.  | 
                  
                        
                           
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                         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)}.  | 
                  
                        
                           
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                            The data that caused the error.  | 
                  
                        
                           
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                            A simple string representation of the error and reason.  | 
                  
                        
                           InventoryTargetingError
                        
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                            The error reason represented by an enum. Enumerations 
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