
Hi Yunjung,
Thank you for reaching out to the Google Ads Scripts Support Team.
I'm afraid that the functionality to mutate account-level negative keywords is not supported via Google Ads Scripts. Allow me to raise a request for this feature to be exposed via the said tool, but please note that we would be unable to provide a definite timeline with regard to it's release and we would instead recommend you keep an eye on our Ads Developer Blog for future updates and latest announcements. You may mutate the said entity through the Google Ads platform for the meantime.
Let us know if we can assist you with anything else.
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Google Ads Scripts Team |