TV lacks a click, so last-click attribution models will severely undervalue its impact. A modern approach requires a holistic dashboard that triangulates performance across multiple metrics, including incremental CPA, view-through CPA, attributable Amazon purchases, and lift in retail sales.

Best Buy Ads offers "in-store takeovers," allowing brands to use its physical stores for immersive, measurable campaigns. This transforms window displays, digital walls, and checkout counters into a powerful advertising medium that engages customers at the point of purchase.

Tushy actively measures the cross-channel impact of its advertising, discovering that top-of-funnel channels like Linear TV drive a greater sales lift on Amazon than digital channels like Meta. This is attributed to the demographic overlap between Linear TV viewers and typical Amazon Prime shoppers.

To prove marketing's ROI, run geo-fenced ad campaigns targeted at a specific set of retail locations. By comparing sales in these "test" stores against a control group of similar stores, you can measure the direct, incremental sales lift caused by your creative, providing black-and-white accountability.

For grocers, the primary value of in-store media isn't just selling ads to brands. It's a strategic lever for inventory management. By using targeted digital messages to accelerate the sale of slow-moving products, grocers can improve inventory turnover, which in turn strengthens their negotiating position with CPG suppliers.

Digital marketing often fails to connect creative engagement with a final purchase, leading to wasted spend. Integrating real-time purchase data into live campaigns, rather than post-campaign analysis, allows for optimization based on actual sales behavior, not just inference.

OOH advertising is most effective when it's not an add-on but the core connector in a media mix. It bridges the gap between physical and digital experiences, amplifying channels like social media and CTV, rather than operating in a silo.

The expectation of one-to-one attribution, conditioned by digital metrics like ROAS, is ill-suited for the complex, "messy" physical store environment. This approach oversimplifies shopper behavior and ignores numerous contributing factors like price, placement, and promotion, leading to flawed analysis.

Early TV tests for DTC brands often focus on a strict Cost Per Acquisition (CAC). As a business scales into omnichannel, the definition of "performance" must expand. Success metrics should include the halo effect on other channels, like branded search lift and increased sales on Amazon.