Google Ads Channel Prioritization: Control Spend in 2027
Google Ads channel prioritization gives advertisers more control over where campaign budgets go first. Instead of treating every eligible network as an all-or-nothing choice, you can mark channels as High priority or Low priority and, for eligible low-priority channels, set an optional daily budget allocation percentage.
Google announced these controls on October 14, 2026. The rollout began on October 15 and is progressive across Search, Shopping, Performance Max and Demand Gen. Availability can differ by campaign type and account, so check the settings available in the account you manage before planning a change.
The important distinction: channel priority is about the order in which eligible channels receive spend. Budget allocation is a separate, best-effort limit for a low-priority channel. Neither setting replaces campaign goals, conversion measurement or regular performance analysis.
What Google Ads channel prioritization changes
Google provides two priority levels. High-priority channels are considered for spend first, within the campaign's target when Target CPA or Target ROAS is used. Any remaining budget can then flow to low-priority channels. All channels are High priority by default until you change the setting.
Low priority does not mean that a channel is switched off. It tells Google Ads to consider that channel after the high-priority channels. This gives advertisers a middle option between leaving every channel equally prioritized and opting out of a network entirely.
The result depends on the campaign's bidding strategy and whether the campaign is limited by budget. For example, when a Target CPA or Target ROAS campaign is not limited by budget, Google says channel prioritization generally does not change how spend is distributed because the system is still trying to reach the target across channels. A budget allocation set on a low-priority channel still applies.
How the daily budget allocation percentage works
Budget allocation is available for eligible low-priority channels. It is calculated from the campaign's average daily budget, not from the amount the campaign actually spends on a particular day. Google's Help Center gives this example: a 5% allocation on a $1,000 average daily budget means Google aims to keep that channel's spend at or below $50 per day.
Treat that percentage as a best-effort limit, not a guaranteed hard cap. Google says daily spend on the channel can occasionally exceed the allocation. The allocation resets each day, and unused or overspent amounts do not carry over. For a shared budget, the allocation applies to the shared budget as a whole across the campaigns using it.
This matters when you are testing Search partners or Display. A 5% setting is not a promise that the channel will never exceed $50, and it is not a percentage of actual campaign spend. Use it as a control for exploration, then judge the channel by conversion quality and business outcomes.
Which campaign types support channel prioritization
Google's current Help Center describes the following channel options. The exact controls can vary as the rollout reaches individual accounts.
Campaign type | Channels available for priority settings | Important note |
Search | Google Search, Search partners and Google Display Network | Search campaigns with Display Expansion are subject to the February 2027 transition. |
Shopping | Google Search and Search partners | Availability is rolling out progressively. |
Performance Max | Google channels, Search partners and Google Display Network | Search, YouTube, Maps, Gmail and Discover are grouped as Google channels. |
Demand Gen | Google channels and Google Display Network | Channel prioritization is available; budget allocation is not supported for Demand Gen. |
For Performance Max and Demand Gen, Google groups Search, YouTube, Maps, Gmail and Discover together as Google channels. Search partners and the Google Display Network can each be assigned their own priority. If you need individual control over supported Google surfaces, review whether a Search or Demand Gen campaign structure is more appropriate for the objective.
Google says the settings can be managed in Google Ads or Search Ads 360. Support for the Google Ads API and Google Ads Editor is listed as coming soon in the Help Center. You cannot set channel prioritization from a manager account; configure it in the client account or at campaign level.
What changes in February 2027 for Search campaigns with Display Expansion
Starting in February 2027, Search campaigns with the Google Display Network enabled will automatically move to channel prioritization and budget allocation. The current Display Expansion spend-allocation setup will go away, and Google says advertisers may see a shift in spend between Google Search, Search partners and the Google Display Network.
If you want to preserve the current configuration, Google's guidance is to set the Google Display Network to Low priority with a 50% daily budget allocation. This is still a best-effort setting, not a guaranteed cap. Google also says the Display Network will no longer serve on Search campaigns using the Target Impression Share bid strategy after the change.
Do not assume you have to wait until February to review the setting. If you configure channel priorities on a Search campaign before then, the new settings apply immediately and replace the current Display Expansion budget behaviour for that campaign. Check the account's current settings and decide whether to adopt the new controls now or prepare for the automatic transition.
Google's official explanation: About channel prioritization and budget allocation.
How to decide which channels should be High or Low priority
Start with evidence from the campaign, not a blanket rule. Review channel-level spend, conversions, cost per conversion, conversion value where available, and the quality of the leads or orders that followed. A channel that produces inexpensive form submissions may still be weak if those enquiries are unqualified or never become customers.
Keep a channel High priority when it consistently contributes to the business outcome that matters, such as qualified leads, purchases or profitable revenue.
Consider Low priority when you want to keep a channel available for incremental reach or testing but do not want it to receive budget before your core channel.
Use a daily allocation percentage only when you have a reason to limit the low-priority channel. Choose the percentage from your account's performance and risk tolerance, not from a universal benchmark.
Review results by campaign objective and campaign type. A setting that makes sense for a brand Search campaign may not make sense for a local lead-generation campaign or a Shopping campaign.
Check whether the campaign is budget-limited and which bid strategy it uses before predicting how much the priority change will affect delivery.
For a local lead-generation account, for example, you might keep Google Search High priority because it captures the core demand you want to measure. You could place Search partners or Display at Low priority while testing them with a modest allocation. That is a planning example, not a recommended percentage for every account. Compare qualified-lead rate and downstream outcomes before increasing the allocation.
For a B2B account, use CRM feedback to distinguish a low-cost lead from a sales-qualified opportunity. The Scroll Labs guide to B2B Google Ads lead quality explains why campaign decisions should be tied to qualified pipeline rather than form volume alone.
Account defaults, campaign overrides and shared budgets
Google allows channel priorities at account, campaign and shared-budget levels. Account defaults can apply across eligible campaigns of the same type, unless you set a campaign-level or shared-budget-level override. This can save time, but it also means an account-wide change may affect campaigns with different objectives or different channel economics.
Shared budgets have an important constraint: campaigns using a shared budget must be the same campaign type for these settings to apply. When configured, the priority and allocation settings treat the shared budget as one pool across the campaigns that use it. Review the whole shared-budget group before changing its channel mix.
Campaign total budgets are supported with channel prioritization for Demand Gen only. For other campaign types, the channel-priority settings do not apply to campaigns using campaign total budgets. Google also notes that multi-campaign shared budgets are not supported in custom experiments, and that all channels in those experiments are treated on the same priority tier.
A practical setup checklist
Inventory Search, Shopping, Performance Max and Demand Gen campaigns, then identify which accounts already show the new Channel prioritization card.
Record recent spend and business outcomes by channel. For lead generation, include qualified-lead or pipeline feedback where available; for ecommerce, compare purchases and value rather than clicks alone.
Check the bid strategy and whether each campaign is limited by budget. This changes how much the priority setting is likely to influence spend.
Decide which channels should receive budget first and which should be tested after them. Do not set every channel to Low priority without a clear reason.
For low-priority channels, add an allocation percentage only when you need a daily spending boundary. Remember that it is calculated from average daily budget and works on a best-effort basis.
Review account defaults, campaign overrides, shared budgets and campaign total budget settings before saving.
For Search campaigns using Display Expansion, document the current configuration and decide whether to adopt the new settings before February 2027.
After the change, monitor channel spend, conversions, cost per conversion, conversion value and lead or customer quality. Compare like-for-like periods and avoid drawing conclusions from a small number of conversions.
Common mistakes to avoid
Treating the allocation percentage as a guaranteed cap. Google explicitly describes it as best effort.
Assuming Low priority means Off. Low-priority channels can still receive remaining spend.
Changing account defaults without checking the campaigns that inherit them.
Comparing channels using clicks or platform-reported conversions alone when lead quality or revenue is the actual goal.
Assuming Demand Gen supports daily budget allocation. Google's current Help Center says it does not.
Changing a Search campaign's priority before February 2027 without realizing that the new setting replaces its current Display Expansion behaviour immediately.
How to measure the impact after a change
Create a before-and-after view that separates channel mix from overall campaign performance. Track spend and conversions by channel, but also review cost per qualified lead, booked appointment, completed purchase or pipeline value where those outcomes are available. If channel-level reporting changes, annotate the date and settings so the team does not mistake a configuration change for a sudden market trend.
Budget pacing still matters after channel prioritization. The new controls influence where eligible spend is directed; they do not remove the need to manage daily and monthly spend against the account's overall budget. For a separate explanation of pacing, see the Scroll Labs guide below.
Related guide: Google Ads Budget Pacing: Daily vs. Monthly Spend Explained.
For Performance Max, review the channel data and reporting limitations before making changes to the wider campaign structure.
Related guide: Google Performance Max Reporting: How to Read Channel Data and Make Better Decisions.
Frequently asked questions
What is Google Ads channel prioritization?
It is a Google Ads control that lets advertisers mark eligible channels as High priority or Low priority. High-priority channels are considered for spend first, and low-priority channels can receive remaining budget, subject to any allocation setting and the campaign's bid strategy.
Is a low-priority budget allocation a hard cap?
No. Google describes it as a best-effort daily limit calculated from the campaign's average daily budget. Daily spend on a channel can occasionally exceed the percentage you set.
Does channel prioritization change spend when a campaign is not limited by budget?
Google says priority levels generally do not change spend distribution for Target CPA or Target ROAS campaigns that are not limited by budget, because the system still aims to reach its target across channels. Any budget allocation set on a low-priority channel still applies.
Does Demand Gen support budget allocation?
No. Google's current Help Center says channel prioritization is available for Demand Gen, but daily budget allocation is not supported for Demand Gen campaigns.
Can I set channel prioritization in Google Ads Editor or through the API?
As of November 2, 2026, Google's Help Center says support for the Google Ads API and Google Ads Editor is coming soon. It says you can manage the controls directly in Google Ads or Search Ads 360, and not from a manager account.
What should I do before February 2027?
Review every Search campaign with the Google Display Network enabled. Decide whether you want the current Display Expansion configuration to be preserved; if so, Google's guidance is to set GDN to Low priority with a 50% daily allocation. Remember that this is best effort, and check the Target Impression Share limitation before making the change.
Sources and further reading
Google Ads Help Center: About channel prioritization and budget allocation (eligibility, bid-strategy behaviour, budget allocation and February 2027 changes).
Google Ads & Commerce Blog: Guide your campaign spending with new priority and allocation features (published October 14, 2026).
Google Ads Help Center: About Display Expansion on Search campaigns.
Book a Free Consultation
If you're reviewing your Google Ads channel mix, lead quality or budget allocation before 2027, The Scroll Labs can help assess the campaign structure and identify where channel priorities may fit.
Book your free consultation to discuss your campaign goals.
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