Skip to content 
Introduction
Google announced three Google Ads bidding changes: Smart Bidding Exploration is now available globally, Promotion mode is in beta for Search and Performance Max, and a backend bidding optimization update rolls out August 17 for budget-limited campaigns. The August 17 change is automatic and requires no opt-in — PPC managers should review July 6 account notifications and confirm CPA/ROAS targets before then.
Google is rolling out a set of Google Ads bidding changes that PPC managers will want to get ahead of. Google Ads Liaison Ginny Marvin recently confirmed three separate updates to bidding and budgeting — two expand existing capabilities, while the third changes how Google handles optimization behind the scenes for budget-constrained campaigns.
If you manage paid search accounts, here’s a breakdown of what’s changing, why it matters, and what to check in your accounts before the biggest update takes effect on August 17.
Overview: The 3 Google Ads Bidding Changes
The latest round of Google Ads bidding changes includes:
- Smart Bidding Exploration (SBE) — now available globally.
- Promotion mode — entering beta for Search and Performance Max campaigns.
- Backend bidding target optimization update — rolling out August 17 for budget-limited campaigns.
Each targets a different pain point, so it’s worth understanding them individually rather than treating this as one single rollout.
Key Takeaways
- 3 updates total: Smart Bidding Exploration (global), Promotion mode (beta), backend optimization change (Aug 17).
- Only 1 is mandatory: The August 17 update applies automatically; SBE and Promotion mode are opt-in.
- Action deadline: Review account notifications appearing from July 6 onward, before August 17.
- Who’s affected most: Campaigns that regularly hit budget limits.
Update | Type | Status | Opt-In Required? |
Smart Bidding Exploration | Bidding | Globally available | No — automatic within existing bidding strategy |
Promotion Mode | Budget flexibility | Beta (Search, PMax) | Yes — advertiser enables it |
Budget-Limited Optimization | Backend update | Rolling out Aug 17 | No — applies automatically |
What Is Smart Bidding Exploration and Why Is It Now Global?
Smart Bidding Exploration is designed to help campaigns surface additional converting traffic beyond the queries they’d typically capture under current bidding targets. Google first introduced the feature ahead of Google Marketing Live 2025 as a way to unlock incremental conversions without forcing advertisers to loosen ROAS targets significantly.
With this update, SBE is now available worldwide, across all languages, for both Search campaigns and Performance Max campaigns that don’t use a product feed. Google is also opening a beta for Shopping advertisers, covering standard Shopping campaigns and feed-based Performance Max campaigns.
Why it matters: SBE lets accounts test for additional volume while still optimizing toward existing goals, rather than requiring a manual, riskier loosening of targets. For PPC managers who feel capped on volume, this is a low-risk lever to test.
What Is Promotion Mode and How Does It Work?
The second of the Google Ads bidding changes is Promotion mode, now in beta for Search and Performance Max campaigns. This feature lets advertisers temporarily expand budget flexibility and adjust ROAS tolerance around specific events — think product launches, seasonal sales, or flash promotions — and it can be layered on top of campaign total budgets.
Historically, PPC managers have handled this manually: raising budgets, loosening targets, and then reversing those changes once the promotional window closes. Promotion mode is built to automate much of that process.
Why it matters: If it performs as intended, Promotion mode could reduce the manual workload around planning for sales events, while giving Google more flexibility to chase short-term demand spikes. Google hasn’t yet confirmed beta eligibility or rollout timing, so check your account before building promotional campaign plans around it.
What Is Changing for Budget-Limited Campaigns on August 17?
The third and most consequential of the Google Ads bidding changes doesn’t require advertisers to opt in — it will affect campaign behavior automatically.
Starting August 17, Google is updating backend bidding target optimization for campaigns that are limited by budget. According to Marvin, the goal is to help these campaigns deliver more predictable performance against CPA and ROAS targets, particularly when budgets are increased.
Google expects a brief calibration period following the rollout, during which some accounts may see minor performance fluctuations. The company hasn’t specified how long that calibration period will last.
To give advertisers lead time, Google began surfacing notifications inside Google Ads accounts starting July 6, including historical performance data and target recommendations tied to the change. Marvin also noted that advertisers may need to revisit CPA or ROAS targets to make sure they still reflect current business goals before the update takes effect.
Why it matters: This is the one change every PPC manager should track closely — not because it’s optional, but because it isn’t.
What This Means for PPC Managers
Taken together, these three Google Ads bidding changes solve different problems:
- Smart Bidding Exploration helps accounts chasing additional volume without a major strategy overhaul.
- Promotion mode helps accounts that regularly manage manual budget and target adjustments around sales events.
- The August 17 update affects budget-constrained campaigns automatically, regardless of whether you adopt any new feature.
That last point is what makes the July 6 in-account notifications worth prioritizing. Google’s suggestion to review CPA and ROAS targets implies that some existing targets may no longer match current account performance or business goals — a gap worth closing before the calibration period begins.
For agencies managing multiple client accounts, this is also a good moment to flag the upcoming change proactively, rather than waiting for clients to ask about performance shifts after the fact.
Action Checklist Before August 17
- Review the July 6 account notifications and historical performance data as they roll in.
- Revisit CPA and ROAS targets to confirm they reflect current business goals.
- Flag any campaigns that consistently hit budget limits and monitor them closely through the rollout.
- Test Smart Bidding Exploration and Promotion mode if they’re available in your account and fit your campaign goals.
- Loop in clients or stakeholders early if you manage multiple accounts.
Most accounts won’t need major structural changes because of this rollout. But campaigns that regularly bump against budget caps deserve a closer look before the change takes effect.
Why This Matters for PPC Professionals in Thrissur
Google Ads bidding changes like these are a reminder that PPC skills need constant updating — what worked six months ago in campaign structuring or manual bid adjustments may already be outdated. For marketers and business owners in Kerala who want to stay current, enrolling in a Digital Marketing Course in Thrissur can help build a stronger foundation in Google Ads, bidding strategy, and campaign optimization, alongside the fundamentals of SEO and paid media.
If you’re comparing options, look for a Digital Marketing Institute in Thrissur that actively updates its PPC and Google Ads modules to reflect changes like Smart Bidding Exploration and Promotion mode, rather than teaching only static, outdated bidding tactics. As Google continues to automate more of the bidding process, marketers who understand both the strategy and the platform mechanics behind these updates will be better positioned to manage client accounts effectively.
Final Takeaways
These Google Ads bidding changes give PPC managers new tools to test, but the August 17 update is the one that deserves the most attention since it applies automatically to budget-limited campaigns. Use the July 6 notifications as your starting point, confirm your targets are still accurate, and keep a close eye on any campaigns operating near their budget ceiling in the weeks ahead.
FAQs on Google Ads Bidding Changes
1. What are the three Google Ads bidding changes?
The three updates are Smart Bidding Exploration going global, Promotion mode entering beta for Search and Performance Max, and a backend optimization update for budget-limited campaigns starting August 17.
2. Do I need to opt in to these Google Ads bidding changes?
Smart Bidding Exploration and Promotion mode are optional features you can test if available in your account. The August 17 optimization update is not optional — it will affect budget-limited campaigns automatically.
3. When does the August 17 update take effect?
The backend bidding target optimization change for budget-limited campaigns is scheduled to begin rolling out on August 17.
4. Will my campaign performance change because of these updates?
Google expects only minor, temporary fluctuations during the calibration period following the August 17 rollout. Actual impact will vary by account.
5. What should PPC managers do before August 17?
Review the July 6 account notifications, revisit CPA and ROAS targets, and closely monitor any campaigns that frequently hit budget limits.
