AI-generated Key Takeaways
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The content describes a customer negative criterion which is used to exclude specific types of content or placements at the customer level.
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Key fields include the resource name, criterion type, ID, and a union field
criterionthat defines the specific type of negative criterion. - 
          
The
criterionfield can specify various exclusions such as content labels, mobile applications or categories, placements, YouTube videos or channels, negative keyword lists, or IP blocks. 
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  |