Week in Brief
- The UK’s CMA ordered Google to rank organic results using objective, non-discriminatory criteria, give advance notice of significant ranking changes, and open a complaint route for businesses, on a six-month clock that covers AI Overviews but not sponsored results.
- Google announced a bidding overhaul on June 15, 2026; from August 17, 2026, budget-limited Target CPA and Target ROAS campaigns that have been beating their targets will be pulled back toward them, with a review tool from July 06, 2026.
- From June 17, 2026, Google began auto-enabling conversion-based customer lists for advertisers already running Enhanced Conversions and Customer Match, with data processing from August 18, 2026 and an opt-out in account settings.
- Ranking volatility ran through the week, a possible unconfirmed Google movement on Friday, June 19, 2026. Google has named nothing.
UK CMA orders Google to operate a “fair ranking” for organic search results, including AI Overviews (June 17, 2026)
The Competition and Markets Authority introduced two conduct requirements for Google on Wednesday, June 17, 2026, under the UK’s digital markets regime. Google must rank organic results using objective and non-discriminatory criteria, give businesses advance notice of significant ranking changes, and run a process for those businesses to raise concerns. The fair-ranking requirement applies to AI Overviews but not sponsored results. Google has six months to implement fair ranking and three months for data portability.
Action Plan according to these new conduct requirements
The companies most affected are B2B, ITES, and SaaS businesses that sell to UK buyers and depend on UK organic visibility. The advance-notice requirement is the part that changes your planning. For the first time, a significant ranking change that hits your UK traffic is meant to arrive with warning and a route to challenge it, rather than landing overnight with no explanation.
If you sell to UK buyers, task someone with tracking the CMA’s six-month rollout and Google’s change notices, so a ranking shift won’t surprise you.
Google’s bidding overhaul will pull budget-limited Target CPA / ROAS campaigns
On June 15, 2026, Google’s Ads Product Liaison Ginny Marvin announced three bidding and budgeting changes; the one with a deadline is Bidding Target Optimization. From August 17, 2026, budget-limited campaigns using Target CPA or Target ROAS that have been over-delivering their stated targets will be steered back toward those targets. Google’s own example: a campaign with a Target CPA of $10 that has been delivering at $5 will move toward $10 unless you lower the target. Google will not adjust your targets or budgets for you. A Bid Target Adjustment Tool and account notifications arrive on July 06, 2026.
What this bidding update means for B2B and SaaS
This affects B2B and SaaS advertisers whose budget-limited Search, Performance Max, or Demand Gen campaigns have quietly been beating their CPA or ROAS targets. That over-performance has been masking a gap between your stated target and your real efficiency. After August 17, 2026 the system optimizes to the stated target, so a campaign delivering leads at half its Target CPA could suddenly deliver at the full target, a worse cost per lead on the same spend.
The judgment call is whether your conservative targets were deliberate or simply stale. If they were a lever to keep volume scaling, lower them before the deadline; if they drifted out of date, you can accept the reset and monitor.
Before August 17, 2026, use the Bid Target Adjustment Tool (being live on July 06, 2026) to check whether budget-limited campaigns are beating their targets, and reset stale ones.
Google Ads is auto-enabling conversion-based customer lists for advertisers already using Enhanced Conversions and Customer Match
Google began turning on conversion-based customer lists on June 17, 2026, for accounts that already use both Enhanced Conversions and Customer Match but had not enabled the feature. Google confirmed this update on June 17, 2026, US Time, via email with subject line “Enrollment in Conversion-based Lists for Performance Optimization”
The feature auto-builds Customer Match audiences from the hashed first-party data you already send for enhanced conversions. Data processing starts August 18, 2026, and advertisers can switch it off in account settings before then.
What this means for B2B and SaaS:
This affects B2B and SaaS advertisers running lead-gen on Google Ads with enhanced conversions live. The lists will appear and feed Smart Bidding whether or not you planned for them. For a SaaS product, an audience built from form-fill conversions is mostly existing audience and customers, which you may not want bidding up as if they were fresh prospects.
The auto-classification is the part to check. If Google labels a list of existing customers as a new-customer acquisition audience, your new-customer goals in Performance Max could optimize against the wrong pool.
Before 18 August, open Audience Manager, check whether the new lists are classified correctly, and decide per account whether to keep the feature on.
Unconfirmed Google ranking volatility continued all week, with a possible quiet movement on Friday
Barry Schwartz at Search Engine Roundtable reported on June 17, 2026 that ranking chatter had not calmed since the 8–12 June window, with some tracker tools showing an uptick. On 21 June he reported that Google may have quietly rolled out a movement on Friday 19 June that appeared to hit black-hat tactics harder than white-hat sites. Most volatility tools looked stable; the stronger signal was elevated chatter in black-hat forums. Google has confirmed nothing and assigned no name as of June 21, 2026. This continued movement follows the May 2026 core update, which was completed on June 02, 2026. We covered what the completed May core update means for marketing teams, and Google’s first dedicated AI visibility reports in a recent edition.
Check your Search Console clicks and average position for the seven days around 19 June, and act only on a clear shift.
What to Watch in Upcoming Weeks
The first real test of CMA “fair ranking”: Google’s six-month clock on fair ranking and three-month clock on data portability started June 17, 2026. The signal to watch is Google’s first published advance notice of a significant ranking change. Publishers have already flagged the CMA’s six-month experimentation exemption as a possible loophole.
Whether Gemini’s referral-share climb holds: SimilarWeb data published on June 11, 2026 put ChatGPT’s share of generative-AI website traffic at roughly 53% in the latest reading, down from about 76% a year earlier, while Gemini climbed from about 9% to roughly 27%. If your GEO work targets ChatGPT alone, watch whether Gemini-referred B2B buyers become too large to ignore. We covered why AI search is already cutting B2B organic clicks, with most sessions ending without one in an earlier edition.
Google Ads customer-type auto-classification: The auto-classification of conversion-based lists takes effect in August. Watch Audience Manager for how Google labels your existing lists before then.
White Bunnie Observation
Across the Google Ads accounts we manage for US-based businesses, where Enhanced Conversions are already enabled, we began seeing recommendations to activate Conversion-Based Customer Lists during the last week of May, weeks before Google’s email notification dated June 17, 2026. This suggests that Google had already started surfacing the feature within advertiser accounts prior to the broader communication.
At this stage, the real-world performance impact of Conversion-Based Customer Lists is still being evaluated. While Google states that these lists can help advertisers better leverage first-party data and improve Smart Bidding capabilities, we prefer to validate platform recommendations with actual account performance before implementing them at scale.
As a measured approach, we have enabled this feature in two selected accounts and are closely monitoring audience growth, conversion quality, and overall campaign performance. Based on the results, we will determine whether it should be rolled out across the remainder of our managed accounts.
