Google today published a question-and-answer post on the August 17 bidding change, hours after an ecommerce analyst told advertisers the date is not a cliff and asked them to hold their nerve for one to two conversion cycles.

Twelve days before the switch, the argument over what happens on August 17 has moved from documentation to persuasion.

Google today posted a structured question-and-answer summary of its forthcoming bidding target change on LinkedIn, published by Ginny Marvin, Ads Product Liaison at the company, and paired with a recorded community session branded as an Ads Decoded AMA. The post had gathered 33 reactions, three comments and two reposts at the time of writing, and it carried the hashtags AdsDecoded, DigitalMarketing, PPC, SearchMarketing, MediaBuying and GoogleAds.

Two hours earlier, Mike Ryan, Head of Ecommerce Insights at Smarter Ecommerce, had published a separate post arguing that the industry reaction to the same date has outrun the mechanics. That post drew 55 reactions, four comments and two reposts.

The two documents, read together, set out the distance between the platform's framing and the practitioner reading of the same change.

What Google set out today

Marvin's post is organised around three questions.

On what is changing, the post states that campaigns limited by budget and over-achieving their targets will see performance adjust to their set targets. According to the post, the change more closely aligns bids and targets, and the system will aim to achieve the advertiser's CPA or ROAS target regardless of budget settings. That behaviour is described as holding during budget changes as well, a scenario in which, according to Marvin, advertisers have often experienced performance fluctuations as the campaign adjusts to a different target.

On what to expect after the rollout, the post says performance should be more stable and predictable when budgets move. Advertisers who reset the target on a budget-capped campaign to its current average performance should see similar conversion volume or conversion value, and after what the post calls a brief recalibration the system will keep maximising volume or value close to the average the campaign has been achieving.

The passage covering inaction is the most operationally specific in the document. According to Marvin, if no action is taken the system will aim to find conversions or conversion value at the average target set in the campaign, and that "may mean entering different auctions than you previously competed in in order to achieve that higher ROAS or the lower CPA target."

That sentence describes a change in inventory, not only a change in arithmetic. A campaign that has been converting well inside its stated target has, in effect, been buying a narrower and cheaper slice of the auction. Pulling delivery toward a looser stated target means bidding into queries and placements the campaign previously skipped.

Marvin then draws the distinction that gives the update its shape. In campaigns where budget is not the binding constraint, the target already functions as the spend and efficiency control, and raising a ROAS target may lower spend as the system seeks greater efficiency. In budget constrained campaigns, according to the post, the target will now be the efficiency lever.

On actions, the post lists a review of campaigns limited by budget to identify any gap between the set target and actual CPA or ROAS, a decision on whether to adjust targets to business goals, and a note that notifications and an in-account tool have been rolled out to support that review. A closing line asks advertisers to take the full conversion cycle into account when evaluating current average target performance.

Twelve days out, a counter-reading

Ryan's post opens with the temperature of the discussion rather than its content. "Google advertisers are losing their minds over August 17th," he wrote, adding that he had been guilty of the same and that much of the anxiety rests on a misconception. Many people he had spoken with imagine the date as a cliff, which, he wrote, "luckily, it isn't."

His technical objection is narrow and turns on a verb. Google does not say that actual ROAS will immediately revert to the target, according to Ryan; the company says performance will trend toward that goal. He set the two words apart for emphasis in the post itself.

From there he attached a timeframe. Google advises waiting one to two conversion cycles, which Ryan put at 30 to 60 days for most advertisers, before evaluating the performance change. "Your limited budget campaign isn't going to break overnight," he wrote. What might break it overnight, according to the post, is overreacting to the news item and moving budget or bid target in one large jump.

That framing lines up with the timing guidance in Marvin's post, which asks advertisers to account for a full conversion cycle when reading average target performance. It also matches earlier documentation covered when Google Ads got promotion mode and a bidding overhaul scheduled for this August, where conversion cycles of two to four weeks were noted as common in niche business-to-business segments.

The slide that came with it

Ryan attached an image from a Google sales deck, described in the post as the most useful slide in the material he had seen. Headed "Effect #2: Campaign can appear to overachieve (even while missing high quality demand)," the slide sets out the bid suppression mechanic behind the whole change.

According to the slide, when a campaign is budget constrained the system automatically decreases bids to avoid hitting the budget cap. The deck states that this hurts the campaign's ability to compete fully in auctions, and that the budgeting system lowers bids to stretch the budget out, leading to cheaper conversions. Two charts sit beside the text, one labelled unconstrained and one constrained, plotting average target CPA against actual CPA and marking auctions missed because budget ran out.

The slide is, in other words, the platform's own account of why an overachieving budget-limited campaign is not simply an efficient one. Cheap conversions in that reading are a by-product of throttled bids rather than evidence of a well-run account.

Ryan flagged a spelling error on the slide, singling out the word "constrainess," and the underlying deck carries a proprietary and confidential marking alongside Accelerate with Google branding.

Three criticisms attached

Having argued against panic, Ryan set out what he described as points he still needed to make.

The first concerns disclosure. According to the post, the change was woefully miscommunicated by Google, and despite improved documentation many specifics are still not adequately explained.

The second concerns the sales motion around it. Ryan wrote that while the change is not inherently a tool to increase budgets, Google sales representatives did not miss the opportunity, and that some of the sales decks in circulation were incredibly unrealistic in the expectations they set.

The third concerns the calendar. Ryan wrote that he does not appreciate that the change was scheduled for peak vacation season in the northern hemisphere, calling the choice borderline offensive. He closed by saying the post would be his final word on the topic until 30 to 60 days after August 17, when he expects to return with data.

That last commitment matters for the trade record. Smarter Ecommerce, the Austrian software provider and performance agency founded in 2007, runs a Market Observer dataset that PPC Land has drawn on repeatedly, including analysis showing Joybuy buying Google Shopping inventory across EU markets before its European launch became public and tracking that documented Temu halving its auction presence while SHEIN neared full exit after the three euro parcel fee. The same company published feed adoption figures showing Demand Gen feed use reaching 35 percent as Performance Max overlap sharpened ahead of Q4, work that flagged August 17 as a Q4 planning input.

What the comment threads carried

Neither post sat unchallenged.

Under Marvin's post, Joey Bidner, a freelance Google Ads manager and coach, rejected the stated rationale outright, writing that nobody has "frustration and confusion when scaling campaigns" and describing the reason given for the update in blunt terms. Michael Wisby, who describes himself as having built a team focused on paid media performance, wrote that this is the toughest job in the world right now.

Craig Graham, who works with ecommerce, lead generation and healthcare brands, took the opposite position. "I know a lot of people have mixed feelings about this update, but I honestly see the value in more closely matching the target with performance," he wrote, adding that the correction runs in both directions and that bringing a quietly under-performing or over-performing campaign into line is cleaner overall.

Under Ryan's post, Julie Friedman Bacchini raised the documentation itself. Every section, she wrote, essentially ends with "increase your budget" as if that is what everyone will do, which she called a fundamental misunderstanding of budget limited campaigns. She also noted that the two conversion cycle guidance appears in the documentation. Eldar Alekperov, Digital Marketing Manager at International SOS, pointed other readers toward a reference made by Greg Finn on the Marketing O'Clock podcast and an explanatory video by Jyll Saskin Gales.

Bidner is a recurring figure in this story. PPC Land documented on July 15, 2026 how his earlier post, in which he wrote he had "never been more frustrated by a Google Ads update", gathered 71 reactions and 27 comments.

The record leading to August 17

The change was first disclosed on June 15, 2026, when Marvin published a three-part package covering an expansion of Smart Bidding Exploration to Performance Max and Shopping campaigns, a promotion mode beta for scheduling ROAS tolerance around demand spikes, and the bidding target optimisation change itself. PPC Land's account of what actually changed in that package recorded the platform coverage: Google Ads, Search Ads 360, Display and Video 360, Google Ads Editor, and the Google Ads API.

A separate interface change ran in parallel. In June 2026, Google restored Target CPA and Target ROAS as standalone bidding strategy labels, splitting them out from the Maximize conversions wrappers without altering the underlying bidding logic.

Notification emails and updated Help Center documentation followed on July 2, 2026, reported alongside a practitioner walkthrough of the arithmetic in coverage of the notification wave. The Bid Target Adjustment Tool then became available inside accounts on July 6, 2026, triggered for advertisers whose campaigns carried a Limited by budget status over the prior twelve months. A week later, PPC Land set out the six week preparation window and the paths inside the tool: keep the target and let delivery drift toward it, lower it to match recent performance, set a custom figure, or switch to Maximize Conversions or Maximize Conversion Value and drop the target constraint entirely.

On July 14, 2026, a Display and Video 360 Help Center announcement extended the same effective date to Demand Gen line items running Target CPA, Target ROAS or Target CPC. Three days later, coverage of a LinkedIn exchange recorded that Google denied the change extends beyond budget-constrained campaigns, with Marvin stating that unconstrained campaigns already behave this way.

Formats included in the change are Search, Shopping, Performance Max, Demand Gen and Travel campaigns carrying the Limited by budget status while running a target-based strategy. Hotel and Display campaigns already operate under the new logic. App campaigns, Video reach campaigns and Video view campaigns sit outside it.

Why this matters for marketers

The practical exposure is arithmetical and unevenly distributed. A campaign with a stated Target CPA of 10 dollars converting at 5 dollars, or a stated Target ROAS of 200 percent delivering 400 percent, carries the largest gap and therefore the largest movement. Accounts whose stated targets already sit close to actual delivery have almost nothing to reconcile.

Two operational questions remain open twelve days out. The first is what "trend toward" resolves to in practice, because Marvin's post describes a directional pull without quantifying its slope, and Ryan's 30 to 60 day window is a measurement period rather than a forecast. The second is auction composition. Entering different auctions means competing against different advertisers on different queries, and the aggregate effect of many budget-limited campaigns loosening their effective bids at once is not addressed in either document.

Timing compounds both. The date falls in the northern hemisphere holiday period and roughly ten weeks before Q4 peak trading, which places the recalibration window and the retail planning cycle on top of each other. Ryan's promise of data 30 to 60 days after August 17 lands somewhere between mid-September and mid-October, close to the point at which seasonal budgets are usually committed.

Timeline

Summary

Who: Ginny Marvin, Ads Product Liaison at Google, and Mike Ryan, Head of Ecommerce Insights at Smarter Ecommerce, publishing separately on LinkedIn. Commenters include Joey Bidner, Craig Graham, Michael Wisby, Julie Friedman Bacchini and Eldar Alekperov. The audience is advertisers running budget-limited Target CPA or Target ROAS campaigns.

What: Google published a three-question summary of the August 17 bidding target change, stating that budget-constrained campaigns will see the target function as the efficiency lever and that inaction may push campaigns into different auctions. Ryan argued the date is not a cliff, put the evaluation window at 30 to 60 days, and criticised Google's communication, its sales decks and the vacation-season timing.

When: Both posts appeared today, August 5, 2026, twelve days before the change takes effect on August 17, 2026. The change was first announced on June 15, 2026, with notification emails on July 2 and the Bid Target Adjustment Tool on July 6.

Where: LinkedIn, alongside an Ads Decoded community session recorded as a video AMA. The underlying change applies across Google Ads, Search Ads 360, Display and Video 360, Google Ads Editor and the Google Ads API.

Why: Budget-limited campaigns running below their stated targets have accumulated unclaimed efficiency that the platform describes as a by-product of suppressed bids rather than genuine performance. Aligning delivery with stated targets removes that gap, which raises the question of whether the resulting movement serves advertiser goals, platform revenue, or both.