Thanks for Anash's good advice. Now the code of removing keywords look
better without needing to use fake matchtype or keyword text.
Unfortunately, the INVALID_ID errors still occur. And I made sure that
the items in each message sent is no more than 500. And apparently the
rate of failing to remove keywords became a bit lower. I wonder how
other AdWords client programmers had encountered such error. The items
are generated from reading some local database tables with
GoogleAdGroupID and GoogleKeywordID previously recorded, and sometimes
AdWords complained 1 to 10 records out of 2000 records in a batch has
INVALID_ID (keywordID).
public static bool RemoveKeywords(IEnumerable<KeywordBaseItem>
items)
{
if (items == null)
return true;
if (items.Count() == 0)
return true;
Trace.TraceInformation("Ready to delete {0} keywords...",
items.Count());
List<AdGroupCriterionOperation> operations = new
List<AdGroupCriterionOperation>(items.Count());
foreach (KeywordBaseItem item in items)
{
Criterion keyword = new Criterion();
keyword.id = item.GoogleId;
keyword.idSpecified = true;
BiddableAdGroupCriterion keywordCriterion = new
BiddableAdGroupCriterion();
keywordCriterion.criterion = keyword;
keywordCriterion.adGroupId = item.GoogleAdGroupId;
keywordCriterion.adGroupIdSpecified = true;
AdGroupCriterionOperation operation = new
AdGroupCriterionOperation();
operati...@operator = Operator.REMOVE;
operation.operatorSpecified = true;
operation.operand = keywordCriterion;
operations.Add(operation);
}
bool finalResult = false;
try
{
AdGroupCriterionService adGroupCriterionService =
(AdGroupCriterionService)GlobalSettings.Default.CurrentUser.GetService(AdWordsService.v200909.AdGroupCriterionService);
GlobalSettings.Default.APIUnitCostsOfCurrentCampaignOfSession +=
GlobalSettings.Default.CurrentUser.GetUnitsForLastOperation();//
operations.Count * APIUnitCostsTable.AdGroupCriterion_Remove;
AdGroupCriterionReturnValue result =
adGroupCriterionService.mutate(
operations.ToArray());
if (result != null && result.value != null)
{
foreach (AdGroupCriterion adGroupCriterion in
result.value)
{
Trace.TraceInformation("Ad group criterion
with ad group id = '{0}, criterion id = '{1} " +
"and type = '{2}' was deleted.",
adGroupCriterion.adGroupId,
adGroupCriterion.criterion.id,
adGroupCriterion.criterion.CriterionType);
}
}
else
{
Trace.TraceWarning("No ad group criteria were
deleted.\n");
}
return true;
}
catch (AdWordsApiException ex)
{
ApiException e = ex.ApiException as ApiException;
foreach (ApiError error in e.errors)
{
EntityNotFound entityError = error as
EntityNotFound;
if (entityError != null)
{
Trace.TraceWarning("When RemoveKeywords:
Exception says \"{0}\". The trigger {1} in campaign {2} is in {3}.
Reason: {4}",
entityError.reason.ToString(),
entityError.trigger, GlobalSettings.Default.CurrentCampaignName,
error.fieldPath, entityError.reason);
continue;
}
Trace.TraceWarning("When RemoveKeywords: Exception
says \"{0}\". The cause in campaign {1} is in {2}.", error.ToString(),
GlobalSettings.Default.CurrentCampaignName, error.fieldPath);
finalResult = false;
}
}
return finalResult;
}
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