Marketing ROI Myths: Incrementality is the Answer

Marketing ROI. It’s the holy grail, right? Except, the path to measuring and improving it is paved with misconceptions. So many professionals are operating on outdated or just plain wrong assumptions. Are you sure your approach to marketing ROI isn’t based on a myth?

Myth #1: Perfect Attribution is Achievable

The Misconception: We can track every touchpoint and precisely assign credit for each sale. We can know exactly what made someone buy.

The Reality: Good luck with that! In the real world, the customer journey is a tangled mess. There are so many variables — offline interactions, word-of-mouth, competitor activities, even the weather — that a perfectly accurate attribution model is a pipe dream. While platforms like Meta Ads Manager and Google Ads offer attribution tools, they are only as good as the data they receive, and that data is always incomplete.

I had a client last year, a regional homebuilder operating out of Buckhead in Atlanta. They were obsessed with last-click attribution. They poured money into the channel that “closed” the most deals, ignoring the fact that those deals were heavily influenced by earlier brand awareness campaigns. When we shifted to incrementality testing – running controlled experiments to isolate the impact of specific campaigns – we discovered that their initial brand awareness efforts were driving far more value than they thought.

Instead of chasing perfect attribution, focus on incrementality testing. Run A/B tests, use geo-experiments, and employ marketing mix modeling to understand the incremental impact of your marketing efforts. Which channel actually drove the sale?

Myth #2: All Marketing Channels are Created Equal

The Misconception: A diversified marketing portfolio is always the best approach. We should be everywhere, all the time.

The Reality: Spreading your budget too thin across too many channels is a recipe for mediocrity. Some channels will inherently deliver a higher marketing ROI than others, depending on your target audience and business goals. A recent report by Nielsen found that, while consumers interact with an average of six touchpoints before making a purchase, only a few of those touchpoints significantly influence their decision. For more on channel selection, consider how to spend less and win more.

We see this all the time. For example, for a B2B software company targeting law firms in the Perimeter Center area, LinkedIn advertising might be far more effective than, say, sponsoring a booth at the Taste of Atlanta food festival. (Unless, of course, those lawyers really love their sliders.)

Instead of blindly diversifying, prioritize the channels that deliver the highest ROI. Analyze your data, identify the top-performing channels, and allocate your budget accordingly. Don’t be afraid to cut your losses and focus on what works.

Myth #3: ROI is Only About Short-Term Sales

The Misconception: Marketing ROI is solely measured by immediate sales and revenue generated.

The Reality: This is a dangerously narrow view. While immediate sales are important, they only tell part of the story. Marketing investments often have long-term effects, such as increased brand awareness, improved customer loyalty, and enhanced brand equity. These intangible assets contribute significantly to long-term profitability but are often overlooked when calculating ROI. As explored in brand strategy, these elements can significantly impact your bottom line.

Think about it: a well-executed content marketing strategy might not generate immediate sales, but it can establish your company as a thought leader in your industry, attract organic traffic to your website, and nurture leads over time. These are all valuable outcomes that contribute to long-term growth.

Consider customer lifetime value (CLTV). Acquiring a customer is expensive; retaining them is much more cost-effective. Marketing efforts that focus on customer retention, such as email marketing, loyalty programs, and personalized customer service, can significantly increase CLTV and, therefore, your overall marketing ROI.

Myth #4: ROI Can Be Calculated Once and Forgotten

The Misconception: Once we calculate our ROI, we’re done! We can just keep doing the same thing.

The Reality: The marketing landscape is constantly changing. New technologies emerge, consumer behaviors shift, and competitor strategies evolve. A marketing ROI calculation that was accurate six months ago might be completely irrelevant today. For CMOs aiming to cut through the noise, this is a critical point.

The algorithm updates on platforms like Microsoft Advertising, the rise of new social media platforms, and even changes in the economic climate can all impact the effectiveness of your marketing campaigns.

For example, I had a client who ran a successful Google Ads campaign targeting people searching for “personal injury lawyer Atlanta.” But then, a new competitor entered the market and started bidding aggressively on the same keywords, driving up the cost per click and eroding their ROI. They had to adjust their bidding strategy, refine their ad copy, and explore new keywords to maintain their profitability.

ROI calculation should be an ongoing process. Regularly monitor your performance, track your key metrics, and adjust your strategies as needed. Use tools like Google Analytics to track website traffic, conversions, and other relevant data.

Myth #5: Marketing ROI is Always a Precise Number

The Misconception: We can calculate ROI down to the penny and know exactly how much profit each marketing dollar generated.

The Reality: While we strive for accuracy, marketing ROI is often an estimate. There are simply too many variables and unknowns to arrive at a perfectly precise figure.

Remember that attribution challenges we discussed earlier? Those challenges also make it difficult to calculate ROI with absolute certainty. Moreover, some marketing activities, such as brand building, have intangible benefits that are difficult to quantify. Explore marketing wins through case studies to see how others have navigated these challenges.

I recall a case where we implemented a sophisticated marketing automation system for a local medical practice near Northside Hospital. While we saw a clear increase in patient appointments and revenue, it was impossible to isolate the precise impact of the automation system from other factors, such as seasonal fluctuations in demand and changes in the practice’s reputation.

Instead of fixating on achieving absolute precision, focus on directional accuracy. Aim to get a reasonable estimate of your ROI and use that information to guide your decision-making. Is your ROI positive? Is it improving over time? Are you getting a better return on investment than you would with alternative uses of those funds? These are the questions that matter.

Don’t get bogged down in the myths surrounding marketing ROI. By embracing incrementality testing, prioritizing high-performing channels, considering long-term value, continuously monitoring performance, and accepting a degree of imprecision, you can make smarter marketing decisions and drive sustainable growth.

Stop chasing the impossible dream of perfect attribution and start focusing on what actually moves the needle. Run more experiments, analyze your data with a critical eye, and don’t be afraid to ditch what isn’t working. That’s the real secret to unlocking a healthy marketing ROI.