Hello,
The Seasonality adjustments are not yet supported through the API. I have your interest with the team. Regarding your concern, neither the deprecation nor the sunset date has been set yet for AdWords API. Once the Google Ads API exits “beta”, we will announce the deprecation date and the sunset date will be at least 1 year after Google Ads API reaches feature parity with AdWords API. Please continue to monitor our
blog for more updates.
Thanks,
Bharani, Google Ads API Team

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