Google Ads Bidding: 3 Key Updates PPC Managers Must Know

Three significant updates from Google Ads are set to reshape how PPC managers approach bidding and budgeting, with one change already scheduled for rollout on August 17. Google Ads Liaison Ginny Marvin detailed these developments on LinkedIn, and they span new global availability, a fresh beta feature, and a behind-the-scenes optimization shift.

Two of these updates expand access to tools that were previously restricted for many advertisers. Smart Bidding Exploration is now rolling out worldwide, while Promotion mode enters beta for Search and Performance Max campaigns. The third update, however, focuses on how Google fine-tunes campaigns constrained by budget limitations, potentially causing temporary performance fluctuations as systems recalibrate.

Smart Bidding Exploration Goes Global

Smart Bidding Exploration helps campaigns uncover additional converting traffic beyond the queries they typically pursue under existing bidding targets. Initially introduced ahead of Google Marketing Live 2025, it aims to unlock conversion opportunities without forcing advertisers to loosen their targets significantly.

Marvin confirmed that SBE is now available globally across all languages for Search campaigns and Performance Max campaigns without a product feed. Additionally, Google is opening a beta for Shopping advertisers, covering both standard Shopping campaigns and Performance Max campaigns with product feeds.

The feature’s appeal lies in its ability to pursue extra reach without requiring advertisers to drastically adjust ROAS targets. Instead, Google identifies incremental conversion opportunities while still optimizing toward existing campaign goals. For accounts feeling volume-constrained, this could be a low-risk path to growth without major structural changes.

Promotion Mode Enters Beta for Search and PMax

Promotion mode is entering beta for Search and Performance Max campaigns, offering advertisers temporary budget flexibility and adjusted ROAS tolerance for specific events like product launches, seasonal promotions, or flash sales. Marvin noted it can work alongside campaign total budgets.

Historically, advertisers manually adjusted budgets and targets around promotions. This feature automates part of that process, potentially simplifying planning and giving Google more leeway during short-term demand spikes. Google hasn’t yet detailed beta eligibility or rollout timing, so advertisers should monitor their accounts before relying on this feature.

How Google Is Changing Budget-Limited Campaign Optimization

The third update carries the most immediate impact on reporting. Starting August 17, Google is implementing backend bidding target optimization changes for budget-limited campaigns. Per Marvin’s LinkedIn post: “Starting August 17, we’re making backend bidding target optimization updates to help campaigns limited by budget see more predictable performance in line with CPA and ROAS targets, especially when budgets increase.”

Marvin added that a brief calibration period is expected, during which some advertisers may see minor performance fluctuations. Google hasn’t specified how long this might last or the scale of changes. The goal is to reduce volatility when budget-constrained campaigns receive additional funds while still optimizing toward CPA and ROAS goals.

To give advertisers lead time, Google will begin showing notifications in accounts starting July 6. These will include historical campaign data and recommendations tied to the changes. Marvin also advised advertisers to review CPA or ROAS targets to ensure they align with current business goals before the rollout.

What This Means for Advertisers

Each update addresses a distinct challenge. Smart Bidding Exploration targets advertisers seeking more volume without overhauling bidding strategies, and the Shopping beta will likely attract those wanting expanded reach. Promotion mode tackles the manual overhead of adjusting budgets and targets around launches and peak periods.

The August 17 optimization update stands apart because advertisers don’t need to opt in for it to affect campaign behavior. That makes the July 6 account notifications critical for teams managing budget-limited campaigns. Google’s suggestion to review CPA and ROAS targets hints that some advertisers may find their current targets no longer reflect business realities.

For agencies, this is a prime opportunity to discuss the upcoming change with clients proactively before the rollout.

What Advertisers Should Do

Smart Bidding Exploration and Promotion mode are optional, but the August 17 rollout demands attention since it affects campaign behavior regardless of adoption. Here are key areas to review:

• Examine the July 6 account notifications and historical performance data when available.Most advertisers will focus on monitoring rather than making major changes. However, campaigns that frequently face budget constraints deserve a thorough review before August 17.Final TakeawaysThe global expansion of Smart Bidding Exploration and the Promotion mode beta offer new tools to test. The August 17 update, though, is different because it alters how Google optimizes budget-limited campaigns behind the scenes. Google’s advance notice via July 6 notifications gives advertisers time to review targets before the change takes effect.For most accounts, this update is something to watch rather than a trigger for immediate action. Still, any campaign regularly operating under budget constraints warrants a closer look before August arrives.