Marketing Platforms Overcredit, Backends Undercredit Ad Revenue
Marketing platforms report higher ROAS than backend systems due to differing attribution defaults on the same conversions.
Performance marketers see marketing platforms report 5x ROAS while backend data shows 2x for the same campaigns, according to MarTech.
Platform Reporting Includes Extra Credits
Marketing platforms count view-through conversions, modeled conversions without consent, and clicks from weeks earlier. These methods increase reported figures by design. Platforms resolve conversion ambiguity by assigning credit to their own touchpoints.
Backend Systems Apply Last-Click Attribution
Backend revenue reporting uses last-click logic that assigns sales to brand search or direct visits. Paid clicks from earlier in the journey receive no credit. The system answers a narrower question than the full impact of ads.
Impression Channels Lose Visibility
Social, display, video, and connected TV formats rely on influence without clicks. A last-click backend records nothing for impressions that later drive branded searches. Post-iOS 14 changes further reduced match rates for clicks that do occur.
Search receives fairer treatment because its clicks occur close to purchase. Impression-based channels face systematic under-crediting that scales with distance from the click.
Multiple Platforms Compound the Discrepancy
Running Google and Meta together produces separate platform reports that each claim the same sale. The gap between 5x and 2x figures stems from these opposing defaults rather than fraud, according to MarTech. Reconciling the two numbers yields a result that matches neither source.
Acting on backend figures alone risks cutting impression spend that feeds later clickable touches.
