Google Advertisers: What to Expect From Smart Bidding Changes

▼ Summary
– Google’s Smart Bidding update, rolling out Aug. 17, will prioritize Target CPA and Target ROAS over budget constraints to make campaign performance more predictable.
– Budget-limited campaigns that have outperformed their targets will now optimize toward the actual target instead of exceeding it due to available budget.
– The change reduces performance swings after budget adjustments by keeping the bidding target consistent, avoiding temporary volatility.
– Unconstrained campaigns remain unaffected, as Target CPA and Target ROAS already dictate spending and efficiency in those cases.
– Advertisers should audit campaigns with gaps between target and actual performance, using new in-account notifications and a review tool to adjust settings before the rollout.
Google’s next Smart Bidding update is designed to deliver more predictable campaign outcomes by enforcing Target CPA and Target ROAS regardless of budget caps, a shift that could reshape how advertisers handle budget-limited campaigns.
What’s happening. With the Aug. 17 rollout approaching, Google Ads Liaison Ginny Marvin has fielded the most pressing advertiser questions about the change. She emphasized that bid targets will now serve as the primary control for efficiency, even when campaigns face budget restrictions. Under the revised behavior, campaigns that have consistently beaten their Target CPA or Target ROAS will start optimizing toward the actual target configured in the campaign, rather than surpassing it simply because extra budget isn’t available.
Performance swings. Google frames this update as a remedy for the volatility advertisers often encounter when adjusting campaign budgets. In the past, budget shifts could force Smart Bidding to recalibrate from its achieved efficiency back toward the stated target, causing temporary instability. The new system aims to smooth those transitions, since the bidding target stays steady irrespective of budget fluctuations.
What won’t change. The company clarified that campaigns operating without budget limits will see no impact, as Target CPA and Target ROAS already dictate spending and efficiency in those cases.
Why we care. Budget-limited campaigns could behave differently after Aug. 17, especially where actual CPA or ROAS has consistently outperformed the campaign’s target. Advertisers should examine campaigns with a notable gap between target and real performance, then decide whether bid targets still align with current business objectives. Google has also rolled out in-account notifications and a review tool to flag campaigns that might need target tweaks before or after the rollout.
The bottom line. Post-Aug. 17, Smart Bidding targets will take precedence over budget constraints in shaping campaign efficiency. Advertisers relying on Target CPA or Target ROAS should audit their settings now to sidestep unexpected performance shifts. For deeper context, check the community Q&A on the August 17 bidding update.
(Source: Search Engine Land)




