Most marketers track ROI, but few connect it across channels

Nielsen research released in October 2025 shows a gap between measuring return on investment and understanding how traditional and digital channels work together. The finding matters for e-commerce brands that need clearer attribution to judge which campaigns actually drive revenue.

Why it matters: - E-commerce teams spend across paid search, social media, affiliate networks, display advertising, and email. - If channel data stays siloed, brands can misread what drives sales and spend against the wrong mix of campaigns. - Better attribution can improve budget allocation, conversion analysis, and decisions during high-demand shopping periods.

What happened: - Nielsen's The Marketing ROI Blueprint, released in October 2025, found that 85% of marketers said they can measure marketing ROI. - Only 32% said they measure ROI across traditional and digital media channels. - The research was cited in a discussion about why e-commerce brands need more complete attribution.

The details: - The report found that 38% of marketers now tend to measure success in terms of sales or ROI. - A campaign can generate heavy traffic and clicks without producing the expected sales. - An affiliate partner can drive high visitor volume without delivering the highest-value customers. - A buyer can first see a product in social ads, then return via organic search, and later purchase through an affiliate link after an email promotion. - When each channel is measured separately, teams can struggle to assign conversion credit correctly. - First-touch attribution captures the first interaction. - Last-touch attribution captures the final interaction before purchase. - Neither model shows the full customer journey on its own. - Key attribution questions include which campaigns introduce eventual buyers, which channels assist conversions without the final click, which affiliate partners drive stronger revenue outcomes, where buyers abandon journeys, and how budgets should be allocated. - Nielsen also found that 60% of marketers combine reach, frequency, and ROI in cross-media measurement strategies.

Between the lines: - The gap between ROI measurement and cross-channel measurement suggests many marketers have data, but not always enough context. - Accurate channel reporting can still produce incomplete conclusions if teams cannot see how touchpoints interact across the path to purchase. - The industry appears to be moving toward broader measurement frameworks, but the report suggests attribution remains uneven.

What's next: - E-commerce teams are being pushed to define success beyond impressions and clicks. - The article recommends integrating paid, affiliate, organic, and other channel data into one reporting framework. - Teams are also urged to compare first-touch, last-touch, and multi-touch models instead of relying on one view alone. - Regular validation of tracking links, conversion events, postbacks, and integrations is presented as a way to reduce measurement errors. - Continuous campaign reviews can help brands adjust budgets based on evidence rather than isolated channel results.

The bottom line: - Measuring ROI is not the same as understanding what created it. For e-commerce brands, attribution is the missing layer that turns channel data into usable business decisions.