Google Ads API : Unable to add campaign level Device targeting using client library

[alok]

Hi,

I am trying to add campaign targets using java client library but getting 
below error while adding device targets.I followed the approach mentioned 
in Google Ads API examples 
https://github.com/googleads/google-ads-java/blob/master/google-ads-examples/src/main/java/com/google/ads/googleads/examples/targeting/AddCampaignTargetingCriteria.java

Note that location and proximity targets are getting added successfully but 
*device 
targets returns error "OPERATOR_NOT_SUPPORTED_FOR_CRITERION_TYPE"*
*Is there bug in google Ads API while adding device targets, if yes any 
timelines when it will be resolved or is there any problem in below 
request.*

Request and Response are below:

Request
-------
MethodName: 
google.ads.googleads.v2.services.CampaignCriterionService/MutateCampaignCriteria
Endpoint: googleads.googleapis.com:443
Headers: {developer-token=TOKEN, login-customer-id=xxxxxxxxxx, 
x-goog-api-client=gl-java/1.8.0_201 gapic/ gax/1.45.0 grpc/1.21.0}
Body: customer_id: "yyyyyyyyyy"
operations {
  create {
    campaign {
      value: "customers/yyyyyyyyyy/campaigns/aaaaaaaaaa"
    }
    criterion_id {
      value: 30001
    }
    negative {
    }
    device {
      type: MOBILE
    }
    bid_modifier {
      value: 4.5
    }
  }
}
operations {
  create {
    campaign {
      value: "customers/yyyyyyyyyy/campaigns/aaaaaaaaaa"
    }
    negative {
    }
    bid_modifier {
      value: 3.4
    }
    proximity {
      geo_point {
        longitude_in_micro_degrees {
          value: -178337050
        }
        latitude_in_micro_degrees {
          value: 28422800
        }
      }
      radius {
        value: 10.0
      }
      radius_units: KILOMETERS
    }
  }
}
operations {
  create {
    campaign {
      value: "customers/yyyyyyyyyy/campaigns/aaaaaaaaaa"
    }
    criterion_id {
      value: 21132
    }
    negative {
    }
    location {
      geo_target_constant {
        value: "geoTargetConstants/21132"
      }
    }
    bid_modifier {
      value: 2.3
    }
  }
}
operations {
  create {
    campaign {
      value: "customers/yyyyyyyyyy/campaigns/aaaaaaaaaa"
    }
    criterion_id {
      value: 21133
    }
    negative {
    }
    location {
      geo_target_constant {
        value: "geoTargetConstants/21133"
      }
    }
    bid_modifier {
      value: 1.2
    }
  }
}
partial_failure: true


Response
--------
Headers: 
Metadata(content-disposition=attachment,content-type=application/grpc,request-id=7Cs-1xvq5XYUgPAj4vQ4jA,date=Fri,
 
30 Aug 2019 10:09:06 GMT,alt-svc=quic=":443"; ma=2592000; v="46,43,39")
Body: results {
}
results {
  resource_name: 
"customers/yyyyyyyyyy/campaignCriteria/aaaaaaaaaa~810693935922"
}
results {
  resource_name: "customers/yyyyyyyyyy/campaignCriteria/aaaaaaaaaa~21132"
}
results {
  resource_name: "customers/yyyyyyyyyy/campaignCriteria/aaaaaaaaaa~21133"
}
partial_failure_error {
  code: 3
  *message: "This operator cannot be applied to a criterion of this type., 
at operations[0].create.device"*
  details {
    type_url: 
"type.googleapis.com/google.ads.googleads.v2.errors.GoogleAdsFailure"
    value: "\nm\n\003\350\001\t\022<*This operator cannot be applied to a 
criterion of this type*
.\032\002*\000\"$\022\016\n\noperations\022\000\022\b\n\006create\022\b\n\006device"
  }
}

Failure message: null
Status: Status{code=OK, description=null, cause=null}.

2019-08-30 10:09:08,867 [main] INFO  
c.t.s.c.g.i.s.CampaignTargetServiceClient - Add campaign targets operation 
0 failed for account yyyyyyyyyy with errors: [error_code {
  campaign_criterion_error: *OPERATOR_NOT_SUPPORTED_FOR_CRITERION_TYPE*
}
message: "This operator cannot be applied to a criterion of this type."
trigger {
  string_value: ""
}
location {
  field_path_elements {
    field_name: "*operations*"
    index {
    }
  }
  field_path_elements {
    field_name: "*create*"
  }
  field_path_elements {
    field_name: "*device*"
  }
}
]

Thanks,
Alok

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