Hi David,
    The ad type which I try to update is ExpandedTextAd

On Monday, 16 March 2020 19:29:22 UTC+8, David Wihl wrote:
>
> What type of ad are you trying to mutate? The list of ad types can be 
> found at: https://developers.google.com/google-ads/api/docs/ads/ad-types  
> The third column, Mutable, tells you whether you can mutate that specific 
> ad type. For example a TextAd is not mutable but a ExpandedTextAd is.
>
> -David
>
> On Sunday, March 15, 2020 at 11:30:30 PM UTC-4, Rukeith Tseng wrote:
>>
>> I am trying to update keyword text value via google ads api python sdk.
>> Here is my sample code
>>
>> import argparse
>> import sys
>>
>> from google.api_core import protobuf_helpers
>> from google.ads.google_ads.client import GoogleAdsClient
>> from google.ads.google_ads.util import ResourceName
>>
>>
>> def main(client, customer_id, ad_group_id, criterion_id):
>>    agc_service = client.get_service('AdGroupCriterionService', version=
>> 'v3')
>>
>>     ad_group_criterion_operation = client.get_type(
>> 'AdGroupCriterionOperation',
>>                                                   version='v3')
>>
>>     ad_group_criterion = ad_group_criterion_operation.update
>>    ad_group_criterion.resource_name = agc_service.ad_group_criteria_path(
>>        customer_id, ResourceName.format_composite(ad_group_id, 
>> criterion_id))
>>
>> // update here
>> ad_group_criterion.keyword.text.value = 'test-keyword'
>>
>>    fm = protobuf_helpers.field_mask(None, ad_group_criterion)
>>    ad_group_criterion_operation.update_mask.CopyFrom(fm)
>>
>>     try:
>>        agc_response = agc_service.mutate_ad_group_criteria(
>>            customer_id, [ad_group_criterion_operation])
>>    except google.ads.google_ads.errors.GoogleAdsException as ex:
>>        print('Request with ID "%s" failed with status "%s" and includes 
>> the '
>>              'following errors:' % (ex.request_id, ex.error.code().name))
>>        for error in ex.failure.errors:
>>            print('\tError with message "%s".' % error.message)
>>            if error.location:
>>                for field_path_element in 
>> error.location.field_path_elements:
>>                    print('\t\tOn field: %s' % 
>> field_path_element.field_name)
>>        sys.exit(1)
>>
>>     print('Updated keyword %s.' % agc_response.results[0].resource_name)
>>
>>
>> if __name__ == '__main__':
>>    # GoogleAdsClient will read the google-ads.yaml configuration file in 
>> the
>>    # home directory if none is specified.
>>    google_ads_client = GoogleAdsClient.load_from_storage()
>>    parser = argparse.ArgumentParser(
>>        description=('Pauses an ad in the specified customer\'s ad group.'
>> ))
>>    # The following argument(s) should be provided to run the example.
>>    parser.add_argument('-c', '--customer_id', type=str,
>>                        required=True, help='The Google Ads customer ID.')
>>    parser.add_argument('-a', '--ad_group_id', type=str,
>>                        required=True, help='The ad group ID.')
>>    parser.add_argument('-k', '--criterion_id', type=str,
>>                        required=True, help='The criterion ID, or keyword 
>> ID.')
>>    args = parser.parse_args()
>>
>>     main(google_ads_client, args.customer_id, args.ad_group_id,
>>         args.criterion_id)
>>
>>
>>
>> But I got an error like this:
>>
>> error_code {
>>    request_error: IMMUTABLE_FIELD
>>  }
>>  message: "Field \'keyword.text\' cannot be modified by \'UPDATE\' 
>> operation."
>>  location {
>>    field_path_elements {
>>      field_name: "operations"
>>      index {
>>      }
>>    }
>>    field_path_elements {
>>      field_name: "update"
>>    }
>>    field_path_elements {
>>      field_name: "keyword"
>>    }
>>    field_path_elements {
>>      field_name: "text"
>>    }
>>  }
>> }
>> , 'OEhB_4KnhzMQaXAX0pvB2Q')
>>
>>
>>
>> I found that update expanded text ads will need to use AdService to 
>> update rather than AdGroupAdService.
>> Is that keyword need to use another service to update text value rather 
>> than AdGroupCriterionService?
>>
>>
>>

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