On October 14, Google Ads added a set of spending controls called channel prioritization and budget allocation. Search partners and the Google Display Network used to be close to on or off. Now channels can be split into High priority and Low priority, and low-priority channels can carry a percentage cap on the daily budget.

Two details decide whether this changes anything. Priority decides who gets funded first. The percentage cap is what actually limits low-priority spend; priority alone often does not. Google says so in the announcement, and plenty of accounts will skim past it.

What Google Actually Shipped

The announcement is dated October 14, 2026 and signed by Tal Akabas, Director of Product Management for Google Ads. It covers two controls.

Channel prioritization sorts inventory and channels into two tiers. Once set, campaigns fully fund high-priority channels, within target when using Target CPA or Target ROAS, before distributing the remaining budget to low-priority channels. Every channel defaults to High priority, so doing nothing leaves today's setup in place until the February 2027 change.

Settings exist at three levels, account, shared budget, and campaign. An account default applies to every eligible campaign in the account, a campaign can override it, and a shared budget setting applies to all campaigns using that budget. Manager accounts cannot set it directly; the change happens inside each client account or campaign.

Budget allocation is available only for low-priority channels, as a maximum percentage of the daily budget. Google calls it best-effort. The tool aims to keep the channel within the cap and does not guarantee it. The cap resets daily, and unspent or overspent amounts do not carry over. The help page also says a 0% allocation means Google will not spend on that channel, which amounts to a pause for that channel alone.

Google frames the feature as finer than all-or-nothing opt-outs. A team that did not want Search partners or the Display Network used to turn the channel off and lose the traffic entirely. Now it can keep the channel with a small budget share and observe whether it adds anything. That makes it a testing and steering tool, not a one-click optimization.

The feature rolls out globally over the coming months across Search, Shopping, Performance Max, and Demand Gen.

Search campaigns expose three channels, Google Search, Search partners, and the Google Display Network, each with its own priority.

A common setup puts Google Search on High, Search partners and the Display Network on Low, and gives the latter two separate percentage caps. Search traffic gets funded first, partner and display inventory run on what remains, and both carry a spending boundary.

Performance Max and Demand Gen work at a different level. In those campaigns, Google surfaces including Search, YouTube, Maps, Gmail, and Discover are prioritized together as "Google channels." Industry write-ups say the individual surfaces cannot be adjusted the way Search channels can. That granularity claim has not been confirmed word for word in the official documentation, so treat it as industry interpretation for now.

The Percentage Cap Is the Real Brake

One line in the announcement is easy to miss. For campaigns using Target CPA or Target ROAS that are not limited by budget, channel prioritization alone will generally not change how spend is allocated. What changes it is the budget allocation cap on the low-priority channel.

The reason is straightforward. When smart bidding is not budget constrained, it chases what it considers the cheapest conversions. Priority tiers do not restrain it. Set High and Low, and the system may still put a large share into the low-priority channel because conversions there look cheaper. The percentage cap creates an actual boundary.

The cap is calculated against the campaign's average daily budget, not actual spend. Google's example is a $1,000 average daily budget with a 5% allocation, where the system aims to keep that channel at or below $50 per day. Read it as best-effort. A small overshoot is not a malfunction; it is how the control is defined.

The February 2027 Deadline

Google names a date. Starting in February 2027, all Search campaigns with Display Expansion enabled will automatically migrate to channel prioritization and budget allocation. The current spend allocation setup goes away, and advertisers may see spending shift across Google Search, Search partners, and the Google Display Network.

To keep the current configuration, set the Google Display Network to Low priority with a 50% daily budget allocation before February 2027. That 50% is also best-effort.

There is one more official note that gets lost. As part of this change, the Display Network will no longer serve on Search campaigns using the Target Impression Share bid strategy. This applies to campaigns on that strategy. It does not mean the Display Network is shutting down.

Timing has a second edge. If channel priorities are set before February 2027, the new settings take effect immediately and replace the current Display Expansion budget behavior. Early configuration is a live switch, not a rehearsal.

Draw the boundary clearly. Google says campaigns auto-migrate, the current allocation setup goes away, spending may shift, the Display Network stops serving on Target Impression Share Search campaigns, and a Low priority plus 50% setup preserves the current configuration. It does not say the Display Network will be closed or merged into another campaign type. Reading it as the end of the Display Network goes beyond the announcement and the help page.

Four Checks Before You Touch Anything

First, list which campaigns run Search partners and the Display Network. In large accounts, export the settings instead of relying on memory.

Second, give each channel a role. Brand search, non-brand search, partner networks, display inventory. Write down what each is supposed to do before assigning priority. Priority without a role just moves a default around.

Third, cap first and watch. Pick one or two campaigns, set a conservative percentage on low-priority channels, and record channel spend, conversions, and CPA before the change. Compare weekly. Do not flip every campaign at once.

Fourth, keep a change log. Date, campaign, channel, percentage, and reason in one table. Next month that table beats memory.

Decide what to watch in advance, too. At least four things. Whether channel spend share moved as intended. Whether CPA and conversion rate on the low-priority channel are acceptable. Whether search terms and placements got worse. Whether total conversions fell because budget moved. Give it two to four weeks; shorter windows get lost in daily noise.

Mechanics of bid strategy and budget pacing live in the bidding and budget guide; this piece covers allocation across channels. For Performance Max structure, see the PMax guide. For Shopping, see the Merchant Center piece. For cost definitions, see the cost and budget guide.

Two Traps

Treating best-effort as a hard cap. It is not a budget lock. Small overshoots can happen, especially in accounts with volatile conversion volume. To stop a channel entirely, use exclusions or turn it off; a tiny percentage is not a pause button.

Treating priority as a universal switch. For smart bidding campaigns that are not budget limited, priority alone may change nothing, and Google says so. Adjusting priority without a cap can produce no visible difference.

One contrast is worth noting. Google's automated promotions, launched October 9, default on and require a manual opt-out. These channel controls are optional knobs; leave them alone and nothing changes. Two updates in the same month, one on by default, one off until configured.

Official Statements and Industry Interpretation

The confirmed official points are these. All four campaign types will support the controls over time. Settings exist at account, shared budget, and campaign levels. Performance Max and Demand Gen treat Google-owned surfaces as one group. Low-priority caps are best-effort.

Two industry claims go further. One says Performance Max cannot adjust individual Google-owned surfaces. The other says Demand Gen supports priorities but not percentage allocation. Neither appears word for word in the announcement or the help page reviewed here. Label them as industry interpretation pending official documentation, not as fact.