AI-generated Key Takeaways
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The customer negative criterion is used to exclude specific criteria at the customer level.
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It has a resource name in the format
customers/{customer_id}/customerNegativeCriteria/{criterion_id}. - 
          
Key fields include the resource name, type, ID, and the criterion itself which can be one of several types like content label, mobile application, placement, or YouTube video/channel.
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The criterion is a union field, meaning exactly one of the listed exclusion types must be set.
 
A negative criterion for exclusions at the customer level.
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 Immutable. The resource name of the customer negative criterion. Customer negative criterion resource names have the form: 
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                   Output only. The type of the criterion.  | 
              
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 Output only. The ID of the criterion.  | 
              
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                   Immutable. ContentLabel.  | 
              
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                   Immutable. MobileApplication.  | 
              
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                   Immutable. MobileAppCategory.  | 
              
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                   Immutable. Placement.  | 
              
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                   Immutable. YouTube Video.  | 
              
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                   Immutable. YouTube Channel.  | 
              
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                   Immutable. NegativeKeywordList.  | 
              
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                   Immutable. IPBLock  | 
              
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                   Immutable. PlacementList.  |