Google Ads Channel Controls: Finally Cap What Performance Max Wastes on Display

When Performance Max spends your money where you'd never choose

Every D2C founder who has run Performance Max for a few months has had the same uncomfortable moment. You open the placement report, and a chunk of your spend went to a mobile game, a parked domain, or a content-farm app nobody on your team would ever pick. The campaign still reported a decent ROAS, so you left it alone. But you always suspected some of that Display money was propping up numbers rather than driving real purchases.

Until now, you couldn't do much about it. Performance Max bundled Search, Shopping, YouTube, Display, Gmail and Discover into one black box and decided the split for you. You could exclude a few placements after the fact, but you couldn't tell Google "spend here first, and cap that other thing."

That changed this month.

The Display problem every D2C founder knows

For most Indian D2C brands, Search and Shopping are where the money is. Someone types "magnesium glycinate india" or sees your product in Shopping and buys. Display and partner placements, by contrast, are cheap, high-volume, and easy for an algorithm to overspend on while attributing conversions that would have happened anyway. The result is a ROAS that looks fine on the surface and quietly wastes budget underneath.

What Google actually launched (and when)

On October 14, 2026, Google announced two new optional controls, and they began becoming available in accounts from October 15. The rollout is staggered, so you may not see them on every campaign yet; Google has described it as landing across the next few months.

Channel prioritization

You can now mark each channel as either High or Low priority. Every channel defaults to High. High-priority channels get funded first, and whatever budget is left over flows to Low-priority channels. The important catch: this only changes spend when a campaign is actually limited by its budget. If your campaign isn't spending its full budget, priority does nothing, because there's no competition for the rupees.

Budget allocation

This is the one D2C teams will care about most. For a Low-priority channel, you can set a percentage cap. The percentage is calculated on the campaign's average daily budget, not on what it actually spends. Set it to 0% and that channel stops spending. The cap resets every day with no carryover, and Google honours it on a best-effort basis, so an occasional daily overspend is possible.

The controls apply to Search, Shopping, Performance Max and Demand Gen. One limitation worth noting: budget allocation isn't supported on Demand Gen, only prioritization is.

How the maths works in rupees

Say your Performance Max campaign runs on an average daily budget of ₹1,000. You set the Google Display Network to Low priority and cap it at 5%. That's a ceiling of roughly ₹50 a day on Display, with the remaining ₹950 going to your High-priority channels first. Push the cap to 0% and Display gets nothing.

Here's how the channels break down per campaign type, and where the prioritization lever actually exists.

Notice that in Performance Max, the core Google channels (Search, Shopping surfaces, YouTube, Gmail, Discover) are grouped together. So you can't yet separate YouTube from Shopping inside PMax. What you can do is fence off search partners and the Display Network, which is exactly where most of the questionable spend tends to sit.

Setting it up for a D2C account

Don't treat this as a one-size switch. The right setting depends on what the campaign is for.

If you run Performance Max

Start by pulling the channel-level spend for the last 30 days. If the Display Network is taking more than a token share and your incremental conversions from it look thin, set it to Low priority and cap it somewhere modest, maybe 10 to 15% while you watch. Don't slam it to 0% on day one across every campaign; you want to confirm that the conversions you were crediting to Display don't vanish from the overall total. Give it a week, compare total purchases and blended ROAS, then tighten.

If you run Shopping or Search

Pure Shopping campaigns already skew toward Search and partners, so the lever is smaller here, but search partners are still worth reviewing. For Search campaigns that quietly carry Display Expansion, this is your moment to decide whether you actually want that reach or whether it's been padding impressions.

This is also where a decision framework helps more than a gut call:

If untangling which channel is doing the real work across several brands sounds like a job in itself, that's precisely the kind of waste audit our performance marketing team runs before touching a single slider.

The February 2027 change you can't ignore

There's a deadline attached to all this. In February 2027, Search campaigns that use Display Expansion will be migrated to the new channel system automatically. If you want to keep behaviour close to what you have today, Google's own guidance is to set the Display Network to Low priority with a 50% allocation. And if your Search campaign uses Target Impression Share bidding, note that it will no longer serve on the Display Network at all after the change.

The practical takeaway: don't wait for February to think about this. Audit your Search campaigns now, decide deliberately whether Display Expansion earns its place, and set the controls on your terms instead of inheriting a default.

Three mistakes to avoid in your first week

New levers invite over-steering, and this one is no exception. A few traps are worth flagging before you touch a single campaign.

Setting everything to 0% on day one

The temptation is to zero out Display across the whole account and watch the waste disappear. The problem is that some of those Display conversions may be genuine, especially for newer brands still building awareness, and cutting them cold can shave real purchases off your total. Start with a modest cap, confirm the overall number holds, then tighten. You're trying to remove waste, not amputate reach you actually use.

Judging it on per-channel ROAS alone

Per-channel ROAS inside Performance Max is a slippery figure, because the algorithm decides attribution across surfaces. If you lean only on the channel-level ROAS to decide what to cap, you can talk yourself into cuts that look smart per channel but dent the blended result. Anchor every decision to total purchases and blended ROAS across the campaign, then use the channel view as a secondary signal.

Forgetting the best-effort fine print

Google is explicit that it honours these caps on a best-effort basis, and that daily spend can occasionally run past the limit, particularly on days a campaign overspends its average budget. So don't set a cap, walk away, and assume it's airtight. Check the channel report after the first week, and again after the first full billing cycle, so a quiet overspend doesn't surprise you.

What this means for how you manage Google Ads

For two years, the trend in Google Ads ran one direction: hand more to automation, see less, control less. These controls are a small reversal, and a welcome one. They don't give you the old granular placement control, but they hand back the single lever D2C brands most wanted, which is the ability to say "protect my Search and Shopping money, and keep a lid on the cheap stuff."

A few habits will keep you honest. Check the channel-level report weekly for the first month after you set a cap, because the best-effort nature means spend can drift. Watch total purchases, not just per-channel ROAS, so you catch any real conversions you were unknowingly leaning on. And remember that none of this rescues a weak product feed or tired creative; prioritization decides where a budget goes, not whether the campaign deserves it.

Used with a cool head, this is one of the more useful Google Ads changes of the year for Indian D2C. It won't magically lift your ROAS overnight, but it stops the slow leak, and over a quarter that leak is usually a bigger number than founders expect.