Google quietly extended a Google Ads beta that lowers your Demand Gen costs after the fact when the campaign underperforms its own predictions. The window used to be three weeks. It is now 60 days. Search Engine Land reported the change on October 16, 2026 after Google updated its documentation.
What The Feature Does
The official name is performance-based cost adjustment for Demand Gen Target CPA and Target ROAS campaigns, and it is still in beta.
Here is the process from Google's side. A new Demand Gen campaign goes into the learning phase with very little conversion data. Google's automated bidding makes predictions about what it can deliver. If the actual conversion performance comes in below those predictions, the system can retroactively lower what you paid, so the result lands closer to your target CPA or target ROAS.
You do not request it. There is no setting. Google decides whether it applies, when it applies, and how much.
What Actually Changed
One number. The maximum duration went from three weeks to 60 days.
That is close to triple the window. For a campaign that takes a while to find its footing, the adjustments can now follow it almost two months out instead of cutting off less than a month in.
Search Engine Land noted that Google's updated documentation confirms the new duration but does not state an effective date for the change itself. So I would not go looking for a specific day this switched on.
Who Qualifies
This is not every Demand Gen campaign. Google lists conditions, and they are the kind that reward accounts that are already in good shape.
- Bidding strategy. Only campaigns using Target CPA or Target ROAS are eligible. If you want a refresher on which bidding strategies fit which goals, that is worth a read first.
- Account age and activity. Google factors both in.
- Conversion tracking quality. This one matters most. Weak conversion tracking means Google cannot tell whether you underperformed in the first place.
- Bidding practices and budget settings. Also considered, though Google does not spell out the thresholds.
Keep in mind, meeting the baseline does not guarantee anything. Search Engine Land was explicit that eligible campaigns may only receive adjustments on certain days.
How You Would Even Notice
This is the part that bothers me, and it is why the post is worth your time.
There are no separate credits. No line items. No notification when an adjustment gets applied. The adjustments show up inside your normal campaign reporting, and the final cost column simply shows what you owe.
Adjustments can start within five days of launching a campaign, and they can take up to five days to appear in reporting after the campaign starts. So for the first week of a new Demand Gen campaign, the numbers you are looking at are not final, and nothing on the screen tells you that.
One of the biggest mistakes I see is treating early campaign costs and billing numbers as settled and making optimization decisions off them. That was already a risk at three weeks. At 60 days it is a bigger one, because you could reasonably pause a Demand Gen campaign at day 30 based on a CPA that Google was still in the middle of adjusting.
What I Would Actually Do With This
Do not treat this as a discount, and do not change how you run campaigns to chase it. Search Engine Land made the same point, and it is the right one. This is not a replacement for accurate conversion tracking or sound campaign management.
- Check your bidding strategy. If a Demand Gen campaign is on Maximize Clicks or manual bidding, it is not eligible for any of this.
- Audit your conversion tracking before you launch, not after. It is a stated eligibility factor, and it is the one you fully control.
- Give new Demand Gen campaigns a longer read window. If costs can still move at day 45, judging the campaign at day 21 is judging an unfinished number.
- Pull your cost data twice. Note what a week looked like when it closed, then look again a month later. At the very least you will know whether adjustments are landing in your account at all.
The good news? If you were already tracking conversions properly and letting campaigns run on a target-based bid strategy, you are already doing the thing that qualifies you. Nothing new to set up.
Question to Answer:
How long do you currently let a new Demand Gen campaign run before you judge its cost per conversion, and is that window shorter than 60 days?
In Summary
Google extended its Demand Gen performance-based cost adjustment beta from three weeks to 60 days. If a qualifying Target CPA or Target ROAS campaign underperforms Google's own predictions during learning, Google can lower your costs after the fact, with no notification and no separate credit line.
The practical takeaway is about your reporting, not your bank account. Early Demand Gen cost numbers are provisional for a lot longer than they used to be, so stretch out how long you wait before making a call on a new campaign, and make sure your conversion tracking is clean enough to qualify in the first place.
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