How your upper funnel drives revenue (even when platform reporting says it doesn't)

An author goes on a popular podcast to talk about her new book. At the end of the episode, the host reads out a link to buy it, repeats it once for good measure, and drops it in the show notes. The publisher can track every sale that comes through that link, and a week later, the number looks pretty modest.

But plenty of listeners heard that interview and did something else entirely. One grabbed the book at an airport bookstore on the way to a work trip. Another added it to his Amazon cart because that's where he buys everything. A third couldn't remember the title but searched the author's name a month later, after a friend brought the book up at dinner. None of those sales show up next to the podcast link, but the podcast is the reason every one of them happened.

Your upper funnel campaigns work the same way. Even when an ad has a clear call to action and a link to buy, only a small share of people take that exact route. The rest show up days or weeks later through search, a typed-in URL, Amazon, or a store shelf. If you only judge awareness spend by the clicks it gets, you'll keep underfunding the campaigns that feed the rest of your revenue, and you'll likely end up paying more for every customer your lower funnel brings in.

Key takeaways

• Upper funnel campaigns often look like underperformers in platform reporting because most people who see an ad don't click it, even when there's a clear link to buy.
• A lot of the revenue these campaigns drive shows up later through organic search, direct traffic, and branded search.
• Shoppers also convert on Amazon, in retail stores, and through retail media ads, even when the original ad pointed to your website.
• Upper funnel spend keeps your retargeting audiences, lookalike audiences, and branded search volume growing, which helps your lower funnel campaigns stay efficient.
• Cutting awareness budget usually looks fine for a few months before lower funnel costs climb and results slip.
• Measuring halo effects across every storefront shows what your upper funnel is actually worth, so budget decisions reflect how customers really buy.

Why upper funnel campaigns look like underperformers

Most ad platforms report on what they can see: someone clicks an ad, lands on your site, and buys within a set window. That's a reasonable way to track lower funnel campaigns, where people are already close to a purchase. It's a lot less useful for upper funnel campaigns, whose main job is making sure people remember you when they're ready to buy.

A few things work against upper funnel campaigns in platform reporting:

• Most people who see an ad keep scrolling. They're watching a video, reading the news, or answering a text, so the ad plants your brand name without ever earning a click.
• Attribution windows are short. Platforms often count purchases that happen within a week or so of a click, while the path from first seeing a brand to buying from it can take much longer.
• Each platform only sees its own path. Meta can't see that someone later bought your product on Amazon, and Amazon can't see the Meta ad that started it all.
• The last touch gets the credit. When someone finally searches your brand name and clicks a paid search ad, that search ad looks like the hero of the story.

Put those together, and you get platform-reported ROAS that makes awareness campaigns look like they're barely breaking even. At the same time, the channels that catch the demand those campaigns created look better than they really are.

Where upper funnel revenue actually shows up

At Prescient, we call this spillover revenue a marketing halo effect. A halo effect is revenue a campaign drives indirectly through another channel, and we believe the campaign deserves credit for it. Here are the most common places it lands.

Organic search and direct traffic

Someone sees your CTV ad while they're making dinner. They don't grab their phone right then, but a few days later, they type your URL into their browser or search for your product by name. In your analytics, that visit shows up as organic or direct traffic, which makes it look free. It wasn't. Your awareness spend is the reason that person knew where to go.

Branded search

Branded search is one of the clearest signs your upper funnel is working, because people can't search for a brand they've never heard of. Some of those searchers click your organic listing, and some click your paid branded search ad.

That second group matters for your budget conversations. Paid branded search tends to look like one of your most efficient campaigns in platform reporting, and part of the reason is that your upper funnel created the demand it's collecting. Branded search still has a job to do, but it shouldn't get all the credit for sales it was only there to catch.

Amazon

Your ad points to your website, but plenty of shoppers head to Amazon instead. They've got fast shipping, saved payment info, and years of habit pulling them there. The ad did its job, but the platform that ran it has no way of seeing the sale. For brands that sell on Amazon, this can be a big chunk of the revenue their awareness campaigns drive.

Retail stores

If your products sit on store shelves, your ads are doing work there too. A shopper who saw your ad last week recognizes your packaging in the aisle and grabs it over the brand next to it. There's no click and no tracking pixel involved, but that purchase still traces back to your marketing. We call these retail halo effects, and for omnichannel brands, they're often too big to ignore.

Retail media

Retail media ads, like sponsored product listings on a retailer's site, sit near the bottom of the funnel because they reach people who are already shopping. Your upper funnel helps these ads work harder. A shopper is more likely to click a sponsored listing from a brand they recognize than one they've never heard of, which means your retail media results partly reflect the awareness you built somewhere else.

What the original ad platform sees

The table below shows how the same upper funnel ad can lead to very different purchase paths, and how little of that the platform running the ad can actually see.

How upper funnel spend makes lower funnel campaigns more efficient

Halo effects are only half the story. Your upper funnel also shapes how well your lower funnel campaigns perform, which means awareness spend affects the numbers on campaigns that look like they have nothing to do with it.

It keeps your retargeting and lookalike audiences growing

Retargeting campaigns need people who've already visited your site. Lookalike audiences need a steady flow of new customers to model from. Branded search campaigns need people who know your name. Every one of those depends on a constant supply of newly aware shoppers, and that supply comes from your upper funnel.

Familiar brands are easier to buy from

People are more likely to click a retargeting ad or a search ad from a brand they already recognize. When your awareness campaigns have done their job, your lower funnel campaigns are talking to people who already have some trust in you, so the same budget tends to go further.

It keeps you from overpaying for the same shoppers

When a brand goes all in on conversion campaigns, it ends up bidding against everyone else for the small group of people who are ready to buy right now. Ad platforms are happy to let you do this, because their algorithms are built to find those ready-to-buy shoppers and charge you for them. Over time, that group gets smaller, costs go up, and your results slide. Upper funnel spend adds new people to the pool so you're not fighting over the same shrinking audience.

It helps you catch the demand you create

Awareness campaigns often teach people about a problem or a product category, not just your brand. Once they're interested, they start searching category terms and comparing options. If your lower funnel campaigns aren't there when that happens, another brand can collect the sale your awareness spend set up. Upper and lower funnel campaigns work best as a pair, with one creating demand and the other making sure you're the one who captures it.

What happens when brands cut upper funnel spend

Because upper funnel results show up slowly, the damage from cutting that spend shows up slowly too. We see a version of this pattern with new clients all the time:

• Month one: The team shifts awareness budget into "high-performing" conversion campaigns, and everything looks great.
• Months two and three: Performance dips a bit, and it gets blamed on seasonality or tired creative.
• Month four or so: ROAS drops noticeably, retargeting audiences shrink, and costs start climbing.
• Month six: The team is testing new creative, new bid strategies, and new targeting, everything except bringing back the awareness spend that was feeding the funnel.

The tricky part is that lower funnel campaigns keep coasting on past awareness for a while, so the cut looks like a win at first. By the time the problem is obvious, it can take months to rebuild the pipeline, since newly aware shoppers need time to move toward a purchase.

How to tell whether your upper funnel is driving revenue

Knowing that upper funnel campaigns drive revenue in all these places is one thing. Proving it to a CFO who wants to see dollars is another. There are a few signals worth watching:

• Branded search volume moving up and down along with your upper funnel spend
• Direct and organic traffic shifting after you launch or pause awareness campaigns
• Amazon and retail sales changing when your awareness spend changes, even though those campaigns don't point there

These are helpful gut checks, but eyeballing them has limits. Seasonality, promotions, pricing changes, and every other campaign you're running all move at the same time, so it's hard to tell which change caused what just by looking at a dashboard.

Incrementality tests are another option teams reach for. Our view is that these tests are locally accurate but globally inaccurate. They can tell you something useful about one campaign during one test window under one set of conditions, but those results don't reliably hold once conditions change. They also struggle to account for people who saw an ad but would have bought anyway.

A marketing mix model (MMM) that measures halo effects gets you much closer to the full picture. Instead of trying to follow each customer's path, it starts with sales you can actually observe in every storefront, including your website, Amazon, and retail, and works backward to estimate what drove them. That lets you see both a campaign's base revenue (the sales that come from direct engagement with the ad) and its halo effects in other channels. Comparing Modeled ROAS with platform-reported ROAS often shows that awareness campaigns are doing far more than their platform numbers suggest.

It's also worth knowing that halo effects aren't limited to upper funnel campaigns. Upper funnel campaigns tend to drive more of them, but a lower funnel campaign can create them too. Someone might see a retargeting ad, skip the click, and buy on Amazon later that week. Good measurement credits every campaign for the revenue it drives, wherever that revenue lands.

Planning upper funnel budget with the full picture

Once you can see where upper funnel revenue lands, you can make budget decisions that match how your customers actually buy. A few things are worth keeping in mind as you plan.

• Give campaigns enough time. The effects of an ad linger after it runs, and every campaign's effects fade at a different pace. Judging an awareness campaign after one week can lead you to cut it right before it pays off.
• Don't assume a campaign is maxed out. Saturation isn't as simple as a single ceiling. Campaigns can have more than one point where extra spend becomes more efficient, and one of those can sit beyond where teams assume a campaign has already topped out.
• Plan at the campaign level. Different campaigns drive revenue differently, so pulling back on a weak awareness campaign while scaling a strong one is usually smarter than cutting a whole channel.
• Forecast before you shift budget. Before scaling a channel or moving budget into it from somewhere else, forecast what's likely to happen across all your storefronts, not just the one the ad points to.

Where Prescient comes in

Prescient's MMM measures base revenue and halo effects for every campaign across your website, Amazon, and retail, so you can see what your upper funnel is really driving and how it's feeding your lower funnel. Models refresh daily and report at the campaign level, which means you can act on what you're seeing without waiting weeks for a new read.

When you're ready to plan, our Media Forecaster shows you what's likely to happen if you scale a campaign's spend or shift budget into it from other channels, so you can make the case for awareness spend with numbers your finance team will trust. Book a demo to see where your upper funnel revenue is really landing.