Wrong action result when try to add keyword with existing text & match type

[ferry Ardhana]

Hi,

Accidentally i perform API call to add new keyword with existing text and match type (duplicate keyword) to particular adgroup.

This is operation that i used (i use python library):

[{'operator': 'ADD', 'operand': {'adGroupId': u'24345423379', 'criterion': {'text': u'inibayiku online shop', 'matchType': u'EXACT', 'xsi_type': 'Keyword'}, 'xsi_type': u'BiddableAdGroupCriterion'}}]

The call is success, no error occurred, but when i check through change history page on adwords web UI. The max.bid of keyword is changed.

So, the API that i call is change the max.bid of keyword instead try to add new keyword. I've try with another keyword with same case and the result is same, max.bid is changed

Do you have explanation of my case?

Thanks

Ferry Ardhana

[Yin Niu]

Hi Ferry, 

When you add a duplicate keyword, it will overwrite the old one and if you don't set the MaxCpc bid, it will take the default value from the AdGroup settings. 

Thanks,

Yin, AdWords API Team.