If you run Google Ads, part of your budget has probably been spent somewhere you never really chose. A Search campaign can quietly spend on search partner sites and the Google Display Network while you assumed every pound, euro or dollar was going to Google Search itself. On 14 October 2026, Google announced a fix for exactly that frustration — and, unusually, it comes with a deadline you cannot ignore.
The update is Google Ads channel prioritization, arriving with a partner control called budget allocation. Together they replace the old all-or-nothing choice — a channel was either on or off — with something far more useful: rank your channels, and cap what the lower-ranked ones may spend. The controls began rolling out progressively from 15 October 2026 across Search, Shopping, Performance Max and Demand Gen campaigns, according to Google Ads Help on channel prioritization, so your account may show them already or in the coming weeks.
DIRECT ANSWER — Google Ads channel prioritization lets advertisers rank each channel as High or Low priority, so High priority channels are funded first and Low priority channels receive only what remains, with an optional daily percentage cap on Low priority spend. It covers Search, Shopping, Performance Max and Demand Gen campaigns, and Search campaigns with Display Expansion enabled migrate automatically in February 2027.
What changed with Google Ads channel prioritization
Two new optional controls, announced by Tal Akabas, Director of Product Management for Google Ads, in Google’s announcement:
1. Channel prioritization. Every channel gets one of two tiers: High priority or Low priority. Google AI funds High priority channels first — within your target if you use Target CPA or Target ROAS — before distributing remaining budget to Low priority channels. By default every channel starts at High priority, so nothing changes until you change it.
2. Google Ads budget allocation. For any Low priority channel, set a maximum share of the campaign’s average daily budget. Google’s example: a 5% allocation on a $1,000 average daily budget aims to keep that channel at or below $50 a day. Set the allocation to 0% and Google will not spend on that channel at all.
Which channels you can rank depends on campaign type. In Search campaigns, rank Google Search, search partners and the Google Display Network separately. In Shopping, Google Search and search partners. In Performance Max and Demand Gen, Google’s own surfaces — Search, YouTube, Maps, Gmail and Discover — are grouped as “Google channels” and ranked as one item. One exception: budget allocation is not supported for Demand Gen campaigns. Set the controls at account level, campaign level, or for a shared budget — but never from a manager account; Google requires you to set them inside each client account.
Who it affects
Three groups should pay attention. First, any business running Search campaigns with Display or search partners switched on — often by default, since Google includes search partners automatically when a Search campaign is created. A dental clinic in Leeds, a trades business in Toronto and an ecommerce store in Berlin can all be paying for partner and Display clicks they never consciously approved. Second, Performance Max advertisers, who finally get a lever on partner and Display spend inside an otherwise automated campaign. Third, every advertiser with a Search campaign using Display Expansion — because from February 2027, Google says all such campaigns will automatically migrate to channel prioritization and budget allocation, the current spend setup will go away, and spend “may shift” between Search, search partners and Display. To keep the current configuration, Google suggests setting Display to Low priority with a 50% daily budget allocation — note that 50% is Google’s “keep things as they are” figure, not a recommendation for your account. After migration, Display will also stop serving on Search campaigns using Target Impression Share bidding.
Advantages: why this update helps small businesses
- Control without losing reach. Instead of switching a channel off entirely, test it with a small cap — say 5% or 10% of daily budget — and let the data decide. A UK guesthouse that feared Display waste can trial it at £10 a day on a £200 budget without risking the month’s spend.
- Budget protection where it counts. If your campaign is limited by budget, High priority channels now genuinely get funded first. A German supplier whose Google Search clicks convert, while partner clicks rarely do, can stop partner spend crowding out Search.
- A fair test for secondary channels. Search partners sometimes convert well. A capped trial over two to four weeks tells you the truth instead of a guess — and a channel that earns its keep can be raised back to High priority.
- Cleaner reporting. When spend moves between channels, the Network segment in Google Ads now shows a split you actually chose, which makes monthly reviews far more honest.
Disadvantages and risks: what to watch
- The cap is a target, not a hard stop. Google is explicit: budget allocation “works on a best-effort basis” and daily spend on a capped channel “may occasionally exceed your budget allocation.” Never report a cap as a guarantee.
- Priority only bites when you are budget-limited. When a campaign is not limited by budget, Google says prioritization generally does not change how spend is distributed — although any budget allocation you set still applies. If your budget is generous, the cap is your real lever.
- The February 2027 migration can move your spend without you. If you set priorities before February 2027, Google says the new settings apply right away and replace current Display Expansion behaviour — so a change made in November changes spend in November, not in February.
- More knobs, more ways to misconfigure. An account default applies to every campaign of a type, and campaigns sharing a budget must be the same campaign type for the settings to apply. Change one thing at a time and note the date in the change history.
Google Ads channel prioritization: what business owners should do now
1. Check whether you are affected. Open each Search campaign, look at Networks, and note whether search partners or the Display Network are on — and whether Display Expansion is enabled. Note the answer before changing anything.
2. Measure each channel first. In the Campaigns table, segment by “Network (with search partners)” over at least the last 90 days. For Google Search, search partners and Display separately, record cost, conversions and cost per conversion. A channel you cannot measure — because tracking counts clicks rather than real leads or sales — must be fixed before you judge it; our Google Ads diagnostic covers the usual tracking leaks, and our GA4 conversion discrepancy diagnostic explains why platforms and analytics often disagree.
3. Set a sensible starting point. A practical default for most Search campaigns: Google Search at High priority; search partners at High only if its cost per conversion already matches Google Search, otherwise Low with a low cap (or off if it has never converted); the Google Ads Display Network budget cap set Low with a low cap, or Display off — a dedicated Display campaign with its own budget is easier to judge than Display hiding inside Search.
4. Handle the February 2027 deadline deliberately. If you run Display Expansion Search campaigns, either set your own priorities and caps now (they take effect immediately), or consciously accept Google’s suggested Low priority with 50% for Display. Do not drift into February and discover the shift in a monthly report.
5. Review after two to four weeks. Re-check the Network segment: is each capped channel near its cap, has total cost per conversion improved or worsened, and has Google Search gained budget share? If conversions fell, a cap may be too tight on a channel that worked. Change caps, bids and budgets one at a time.
A worked example: a small ecommerce store in Manchester spends £150 a day on one Search campaign. Over 90 days, search partners delivered leads at a similar cost to Google Search, while Display took a growing share of spend and produced almost no traceable sales. A sensible start: Google Search High, search partners High (it earns its keep), Display Low with a 5% cap — about £7.50 a day — or off entirely. The same logic applies to a €200-a-day store in Amsterdam or a $300-a-day clinic in Sydney; only the currency and the channel numbers change.
FAQ
What is Google Ads channel prioritization? It is Google’s October 2026 control that lets you rank the channels in a campaign as High or Low priority, so High priority channels are funded first and Low priority channels receive remaining budget, with an optional daily percentage cap.
When did Google Ads channel prioritization launch? Google announced it on 14 October 2026, with a progressive rollout from 15 October 2026 across Search, Shopping, Performance Max and Demand Gen. Availability varies by campaign type and rollout timing, so your account may not show it yet.
Does the Google Ads Display Network budget cap guarantee a channel will not overspend? No. Google says budget allocation works on a best-effort basis: daily spend on a capped channel may occasionally exceed the percentage you set. Check the Network segment rather than assuming the cap held.
What happens in February 2027 if I do nothing? Search campaigns with Display Expansion enabled migrate automatically to channel prioritization and budget allocation, and Google warns channel spending may shift. Setting Display to Low priority with a 50% allocation preserves the current configuration, according to Google — but that may not suit your account.
How do I set Google Ads channel priority settings? At account level, go to Account settings, find the Channel Prioritization card, choose the campaign type, assign High or Low priority per channel, and optionally add a budget allocation percentage for Low priority channels. At campaign level, open the campaign, go to Settings, expand the Channel Prioritization card, and choose campaign-level settings. As PPC Land’s summary of the rollout notes, you cannot set it from a manager account.
How AgencyAxiom does this for you
We audit your Google Ads account channel by channel — Search, search partners and Display — against real leads and sales, not dashboard clicks, then set priorities and caps that fit your numbers and handle the February 2027 Display migration for you, with a plain-English report on what changed. If you would like that check on your own account, Book a Free Consultation and ask for a free Google Ads channel and tracking audit. You can also see our full advertising services for what else we cover.