Google is changing how some Target CPA and Target ROAS campaigns behave starting August 17, 2026.
The update mainly affects campaigns that are limited by budget and have been performing better than the target set inside Google Ads.
If your business relies on Google Ads for leads, calls, bookings, or sales, this is worth checking before the change takes effect.
Starting August 17, some budget-limited campaigns may begin optimizing more closely toward the Target CPA or Target ROAS you entered.
What Is Changing?
Right now, some campaigns can perform much better than the target set by the advertiser.
For example, you may have your Target CPA set to $70, while the campaign has actually been getting conversions for around $40.
That means the campaign is doing better than the target you gave Google.
Starting August 17, Google says affected campaigns may begin optimizing more closely toward that $70 target instead of continuing to perform much lower than it.
The important part: the target inside your campaign should reflect the result your business actually wants.
Google’s Example
Google uses a simple example to explain the change.
In this case, the campaign has been getting conversions for around $5 even though the advertiser told Google that $10 was the target.
After August 17, Google says the campaign may move closer to that $10 target unless the advertiser updates it.
This does not mean every advertiser should immediately change their Target CPA. It means the difference between the target and the actual result is now more important.
Who Needs to Check Their Campaigns?
This update does not affect every Google Ads campaign.
The campaigns worth reviewing first are those that:
- Are consistently marked Limited by budget
- Use Target CPA or Target ROAS
- Have been performing noticeably better than the target set
- Generate important leads, bookings, sales, or revenue
The change can apply across eligible campaign types including Search, Shopping, Performance Max, Demand Gen, Travel, and other target-based campaigns.
Campaigns that are not limited by budget are not expected to behave differently because of this particular update.
What Should You Check Before August 17?
Review these first
- Campaigns marked Limited by budget
- Your Target CPA compared with your actual CPA
- Your Target ROAS compared with your actual ROAS
- Conversion quality
- Conversion tracking
- Your current campaign budget
- Whether the target still matches the business goal
Compare Target CPA With Actual CPA
If your Target CPA is $75 but your campaign has consistently been getting conversions around $48, that difference is worth reviewing.
The question is not simply whether $48 looks better.
The question is whether $48, $55, $60, or another number makes sense based on the actual cost of acquiring a customer.
Compare Target ROAS With Actual ROAS
The same idea applies to Target ROAS.
If your Target ROAS is 400%, but the campaign has consistently produced 650%, review whether the lower target still represents the return your business wants Google to pursue.
Check Conversion Quality
CPA alone does not tell the whole story.
A $30 lead is not necessarily better than a $60 lead if the $60 lead is more likely to become a paying customer.
Look at the quality of the results:
- Qualified phone calls
- Real customer inquiries
- Bookings
- Sales
- Revenue
Check Your Conversion Tracking
Smart Bidding depends on the conversion data Google receives.
Make sure your campaigns are optimizing toward actions that actually matter to the business.
If weak actions are being counted as primary conversions, changing Target CPA or Target ROAS may not fix the real problem.
Don’t Change Anything Just Because of the Deadline
August 17 should be a reason to review the account, not a reason to panic.
CPA and ROAS naturally move up and down, so avoid making decisions based on one good day or one bad week.
Depending on the campaign, reviewing the last 30, 60, or 90 days can give you a clearer picture of what the campaign has actually been doing.
Search Engine Journal also recommends looking across at least one full conversion cycle instead of reacting to short-term performance.
Performance Max Is Included Too
Performance Max is among the campaign types included when the relevant budget and bidding conditions apply.
If you use Performance Max, review your Target CPA or Target ROAS, actual performance, conversion values, conversion quality, and campaign budget before August 17.
Why This Matters
A Target CPA or Target ROAS should not be a number that was entered months ago and forgotten.
These targets help guide how Google’s automated bidding system spends your budget.
If your campaign has been consistently outperforming the target you set, now is a good time to check whether that target still makes sense.
The goal is not to chase the lowest possible CPA or the highest possible ROAS.
The goal is to give Google a target that matches what the business actually needs to remain profitable and continue growing.
Need Help Reviewing Your Google Ads Campaigns?
Supreme Line helps businesses review and manage Google Ads campaigns with a focus on qualified leads, accurate conversion tracking, cost efficiency, and measurable business results.
If your campaigns use Target CPA, Target ROAS, Search, Performance Max, or other automated bidding strategies, a campaign review can help determine whether your targets, budgets, and conversion tracking still match your business goals.
Sources
This article is Supreme Line’s independent explanation of the announced Google Ads changes. Source reporting and official documentation were used to understand the update.
