Hi Haiyang,
Thank you for posting your concern.
To answer your question, I can say that the provided use case is possible using the Google Ads API by referring to this
guide. However, as for changing the budget based on the budget used on the previous day, then the logic of the code should be implemented on your end.
Regards,
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| Ernie John Blanca Tacata |
| Google Ads API Team |
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