Hello Yun,
Basically you should use AdGroupService for biddable keywords.
At a campaign level, only negative keywords can be used.
For a quick reference for targeting, you can also refer this page.
https://developers.google.com/adwords/api/docs/appendix/targetingtypes
Best,
- Takeshi, AdWords API
Hey, i would like to know what is the proper way or what API call i should
use to change the adwords keyword bidding, Thanks.
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