AI-generated Key Takeaways
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Describes a single operation on a campaign criterion: create, update, or remove.
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The
update_maskfield determines which resource fields are modified during an update operation. - 
          
The
operationfield specifies the type of mutate operation to perform: create, update, or remove. - 
          
Create operations do not require a resource name for the new criterion.
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Update operations require a valid resource name for the criterion being modified, with limitations for smart campaigns.
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Remove operations require a resource name in a specific format for the criterion being removed.
 
A single operation (create, update, remove) on a campaign criterion.
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                   FieldMask that determines which resource fields are modified in an update.  | 
              
Union field 
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                   Create operation: No resource name is expected for the new criterion.  | 
              
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                   Update operation: The criterion is expected to have a valid resource name. Note that for smart campaigns, you cannot use the update method to edit the geolocation target.  | 
              
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 Remove operation: A resource name for the removed criterion is expected, in this format: 
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